290402420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 216

約数和(自身を含む): 815109120

約数和(自身を除く): 524706700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 79, 98, 110, 121, 124, 140, 154, 155, 158, 196, 217, 220, 242, 245, 308, 310, 316, 341, 385, 395, 434, 484, 490, 539, 553, 605, 620, 682, 770, 790, 847, 868, 869, 980, 1078, 1085, 1106, 1210, 1364, 1519, 1540, 1580, 1694, 1705, 1738, 2156, 2170, 2212, 2387, 2420, 2449, 2695, 2765, 3038, 3388, 3410, 3476, 3751, 3871, 4235, 4340, 4345, 4774, 4898, 5390, 5530, 5929, 6076, 6083, 6820, 7502, 7595, 7742, 8470, 8690, 9548, 9559, 9796, 10780, 11060, 11858, 11935, 12166, 12245, 15004, 15190, 15484, 16709, 16940, 17143, 17380, 18755, 19118, 19355, 23716, 23870, 24332, 24490, 26257, 26939, 29645, 30380, 30415, 33418, 34286, 37510, 38236, 38710, 42581, 47740, 47795, 48980, 52514, 53878, 59290, 60830, 66836, 66913, 68572, 75020, 77420, 83545, 85162, 85715, 95590, 105028, 107756, 118580, 120001, 121660, 131285, 133826, 134695, 167090, 170324, 171430, 183799, 188573, 191180, 212905, 240002, 262570, 267652, 269390, 296329, 334180, 334565, 342860, 367598, 377146, 425810, 468391, 480004, 525140, 538780, 592658, 600005, 669130, 735196, 754292, 851620, 918995, 936782, 942865, 1185316, 1200010, 1320011, 1338260, 1481645, 1837990, 1873564, 1885730, 2074303, 2341955, 2400020, 2640022, 2963290, 3675980, 3771460, 4148606, 4683910, 5280044, 5926580, 6600055, 8297212, 9367820, 10371515, 13200110, 14520121, 20743030, 26400220, 29040242, 41486060, 58080484, 72600605, 145201210, 290402420]

約数ペア:

[(1, 290402420), (2, 145201210), (4, 72600605), (5, 58080484), (7, 41486060), (10, 29040242), (11, 26400220), (14, 20743030), (20, 14520121), (22, 13200110), (28, 10371515), (31, 9367820), (35, 8297212), (44, 6600055), (49, 5926580), (55, 5280044), (62, 4683910), (70, 4148606), (77, 3771460), (79, 3675980), (98, 2963290), (110, 2640022), (121, 2400020), (124, 2341955), (140, 2074303), (154, 1885730), (155, 1873564), (158, 1837990), (196, 1481645), (217, 1338260), (220, 1320011), (242, 1200010), (245, 1185316), (308, 942865), (310, 936782), (316, 918995), (341, 851620), (385, 754292), (395, 735196), (434, 669130), (484, 600005), (490, 592658), (539, 538780), (553, 525140), (605, 480004), (620, 468391), (682, 425810), (770, 377146), (790, 367598), (847, 342860), (868, 334565), (869, 334180), (980, 296329), (1078, 269390), (1085, 267652), (1106, 262570), (1210, 240002), (1364, 212905), (1519, 191180), (1540, 188573), (1580, 183799), (1694, 171430), (1705, 170324), (1738, 167090), (2156, 134695), (2170, 133826), (2212, 131285), (2387, 121660), (2420, 120001), (2449, 118580), (2695, 107756), (2765, 105028), (3038, 95590), (3388, 85715), (3410, 85162), (3476, 83545), (3751, 77420), (3871, 75020), (4235, 68572), (4340, 66913), (4345, 66836), (4774, 60830), (4898, 59290), (5390, 53878), (5530, 52514), (5929, 48980), (6076, 47795), (6083, 47740), (6820, 42581), (7502, 38710), (7595, 38236), (7742, 37510), (8470, 34286), (8690, 33418), (9548, 30415), (9559, 30380), (9796, 29645), (10780, 26939), (11060, 26257), (11858, 24490), (11935, 24332), (12166, 23870), (12245, 23716), (15004, 19355), (15190, 19118), (15484, 18755), (16709, 17380), (16940, 17143)]