19663696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 44622144

約数和(自身を除く): 24958448

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 67, 68, 83, 104, 134, 136, 166, 208, 221, 268, 272, 332, 442, 536, 664, 871, 884, 1072, 1079, 1139, 1328, 1411, 1742, 1768, 2158, 2278, 2822, 3484, 3536, 4316, 4556, 5561, 5644, 6968, 8632, 9112, 11122, 11288, 13936, 14807, 17264, 18224, 18343, 22244, 22576, 29614, 36686, 44488, 59228, 72293, 73372, 88976, 94537, 118456, 144586, 146744, 189074, 236912, 289172, 293488, 378148, 578344, 756296, 1156688, 1228981, 1512592, 2457962, 4915924, 9831848, 19663696]

約数ペア:

[(1, 19663696), (2, 9831848), (4, 4915924), (8, 2457962), (13, 1512592), (16, 1228981), (17, 1156688), (26, 756296), (34, 578344), (52, 378148), (67, 293488), (68, 289172), (83, 236912), (104, 189074), (134, 146744), (136, 144586), (166, 118456), (208, 94537), (221, 88976), (268, 73372), (272, 72293), (332, 59228), (442, 44488), (536, 36686), (664, 29614), (871, 22576), (884, 22244), (1072, 18343), (1079, 18224), (1139, 17264), (1328, 14807), (1411, 13936), (1742, 11288), (1768, 11122), (2158, 9112), (2278, 8632), (2822, 6968), (3484, 5644), (3536, 5561), (4316, 4556)]