665115220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 216

約数和(自身を含む): 1833995520

約数和(自身を除く): 1168880300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 79, 98, 110, 121, 140, 142, 154, 158, 196, 220, 242, 245, 284, 308, 316, 355, 385, 395, 484, 490, 497, 539, 553, 605, 710, 770, 781, 790, 847, 869, 980, 994, 1078, 1106, 1210, 1420, 1540, 1562, 1580, 1694, 1738, 1988, 2156, 2212, 2420, 2485, 2695, 2765, 3124, 3388, 3476, 3479, 3871, 3905, 4235, 4345, 4970, 5390, 5467, 5530, 5609, 5929, 6083, 6958, 7742, 7810, 8470, 8591, 8690, 9559, 9940, 10780, 10934, 11060, 11218, 11858, 12166, 13916, 15484, 15620, 16940, 17182, 17380, 17395, 19118, 19355, 21868, 22436, 23716, 24332, 27335, 28045, 29645, 30415, 34364, 34790, 38236, 38269, 38710, 39263, 42581, 42955, 47795, 54670, 56090, 59290, 60137, 60830, 61699, 66913, 69580, 76538, 77420, 78526, 85162, 85910, 95590, 109340, 112180, 118580, 120274, 121660, 123398, 133826, 153076, 157052, 170324, 171820, 191180, 191345, 196315, 212905, 240548, 246796, 267652, 274841, 300685, 308495, 334565, 382690, 392630, 420959, 425810, 431893, 468391, 549682, 601370, 616990, 669130, 678689, 765380, 785260, 841918, 851620, 863786, 936782, 1099364, 1202740, 1233980, 1338260, 1357378, 1374205, 1683836, 1727572, 1873564, 2104795, 2159465, 2341955, 2714756, 2748410, 3023251, 3393445, 4209590, 4318930, 4683910, 4750823, 5496820, 6046502, 6786890, 8419180, 8637860, 9367820, 9501646, 12093004, 13573780, 15116255, 19003292, 23754115, 30232510, 33255761, 47508230, 60465020, 66511522, 95016460, 133023044, 166278805, 332557610, 665115220]

約数ペア:

[(1, 665115220), (2, 332557610), (4, 166278805), (5, 133023044), (7, 95016460), (10, 66511522), (11, 60465020), (14, 47508230), (20, 33255761), (22, 30232510), (28, 23754115), (35, 19003292), (44, 15116255), (49, 13573780), (55, 12093004), (70, 9501646), (71, 9367820), (77, 8637860), (79, 8419180), (98, 6786890), (110, 6046502), (121, 5496820), (140, 4750823), (142, 4683910), (154, 4318930), (158, 4209590), (196, 3393445), (220, 3023251), (242, 2748410), (245, 2714756), (284, 2341955), (308, 2159465), (316, 2104795), (355, 1873564), (385, 1727572), (395, 1683836), (484, 1374205), (490, 1357378), (497, 1338260), (539, 1233980), (553, 1202740), (605, 1099364), (710, 936782), (770, 863786), (781, 851620), (790, 841918), (847, 785260), (869, 765380), (980, 678689), (994, 669130), (1078, 616990), (1106, 601370), (1210, 549682), (1420, 468391), (1540, 431893), (1562, 425810), (1580, 420959), (1694, 392630), (1738, 382690), (1988, 334565), (2156, 308495), (2212, 300685), (2420, 274841), (2485, 267652), (2695, 246796), (2765, 240548), (3124, 212905), (3388, 196315), (3476, 191345), (3479, 191180), (3871, 171820), (3905, 170324), (4235, 157052), (4345, 153076), (4970, 133826), (5390, 123398), (5467, 121660), (5530, 120274), (5609, 118580), (5929, 112180), (6083, 109340), (6958, 95590), (7742, 85910), (7810, 85162), (8470, 78526), (8591, 77420), (8690, 76538), (9559, 69580), (9940, 66913), (10780, 61699), (10934, 60830), (11060, 60137), (11218, 59290), (11858, 56090), (12166, 54670), (13916, 47795), (15484, 42955), (15620, 42581), (16940, 39263), (17182, 38710), (17380, 38269), (17395, 38236), (19118, 34790), (19355, 34364), (21868, 30415), (22436, 29645), (23716, 28045), (24332, 27335)]