128491740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1277}}^1$

素因数の和:1348

約数の個数: 144

約数和(自身を含む): 429837408

約数和(自身を除く): 301345668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 180, 195, 215, 234, 258, 260, 387, 390, 430, 468, 516, 559, 585, 645, 774, 780, 860, 1118, 1170, 1277, 1290, 1548, 1677, 1935, 2236, 2340, 2554, 2580, 2795, 3354, 3831, 3870, 5031, 5108, 5590, 6385, 6708, 7662, 7740, 8385, 10062, 11180, 11493, 12770, 15324, 16601, 16770, 19155, 20124, 22986, 25155, 25540, 33202, 33540, 38310, 45972, 49803, 50310, 54911, 57465, 66404, 76620, 83005, 99606, 100620, 109822, 114930, 149409, 164733, 166010, 199212, 219644, 229860, 249015, 274555, 298818, 329466, 332020, 494199, 498030, 549110, 597636, 658932, 713843, 747045, 823665, 988398, 996060, 1098220, 1427686, 1494090, 1647330, 1976796, 2141529, 2470995, 2855372, 2988180, 3294660, 3569215, 4283058, 4941990, 6424587, 7138430, 8566116, 9883980, 10707645, 12849174, 14276860, 21415290, 25698348, 32122935, 42830580, 64245870, 128491740]

約数ペア:

[(1, 128491740), (2, 64245870), (3, 42830580), (4, 32122935), (5, 25698348), (6, 21415290), (9, 14276860), (10, 12849174), (12, 10707645), (13, 9883980), (15, 8566116), (18, 7138430), (20, 6424587), (26, 4941990), (30, 4283058), (36, 3569215), (39, 3294660), (43, 2988180), (45, 2855372), (52, 2470995), (60, 2141529), (65, 1976796), (78, 1647330), (86, 1494090), (90, 1427686), (117, 1098220), (129, 996060), (130, 988398), (156, 823665), (172, 747045), (180, 713843), (195, 658932), (215, 597636), (234, 549110), (258, 498030), (260, 494199), (387, 332020), (390, 329466), (430, 298818), (468, 274555), (516, 249015), (559, 229860), (585, 219644), (645, 199212), (774, 166010), (780, 164733), (860, 149409), (1118, 114930), (1170, 109822), (1277, 100620), (1290, 99606), (1548, 83005), (1677, 76620), (1935, 66404), (2236, 57465), (2340, 54911), (2554, 50310), (2580, 49803), (2795, 45972), (3354, 38310), (3831, 33540), (3870, 33202), (5031, 25540), (5108, 25155), (5590, 22986), (6385, 20124), (6708, 19155), (7662, 16770), (7740, 16601), (8385, 15324), (10062, 12770), (11180, 11493)]