40702940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 95800320

約数和(自身を除く): 55097380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 47, 53, 76, 86, 94, 95, 106, 172, 188, 190, 212, 215, 235, 265, 380, 430, 470, 530, 817, 860, 893, 940, 1007, 1060, 1634, 1786, 2014, 2021, 2279, 2491, 3268, 3572, 4028, 4042, 4085, 4465, 4558, 4982, 5035, 8084, 8170, 8930, 9116, 9964, 10070, 10105, 11395, 12455, 16340, 17860, 20140, 20210, 22790, 24910, 38399, 40420, 43301, 45580, 47329, 49820, 76798, 86602, 94658, 107113, 153596, 173204, 189316, 191995, 214226, 216505, 236645, 383990, 428452, 433010, 473290, 535565, 767980, 866020, 946580, 1071130, 2035147, 2142260, 4070294, 8140588, 10175735, 20351470, 40702940]

約数ペア:

[(1, 40702940), (2, 20351470), (4, 10175735), (5, 8140588), (10, 4070294), (19, 2142260), (20, 2035147), (38, 1071130), (43, 946580), (47, 866020), (53, 767980), (76, 535565), (86, 473290), (94, 433010), (95, 428452), (106, 383990), (172, 236645), (188, 216505), (190, 214226), (212, 191995), (215, 189316), (235, 173204), (265, 153596), (380, 107113), (430, 94658), (470, 86602), (530, 76798), (817, 49820), (860, 47329), (893, 45580), (940, 43301), (1007, 40420), (1060, 38399), (1634, 24910), (1786, 22790), (2014, 20210), (2021, 20140), (2279, 17860), (2491, 16340), (3268, 12455), (3572, 11395), (4028, 10105), (4042, 10070), (4085, 9964), (4465, 9116), (4558, 8930), (4982, 8170), (5035, 8084)]