19680180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1097}}^1$

素因数の和:1145

約数の個数: 96

約数和(自身を含む): 61979904

約数和(自身を除く): 42299724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1097, 1196, 1380, 1495, 1794, 2194, 2990, 3291, 3588, 4388, 4485, 5485, 5980, 6582, 8970, 10970, 13164, 14261, 16455, 17940, 21940, 25231, 28522, 32910, 42783, 50462, 57044, 65820, 71305, 75693, 85566, 100924, 126155, 142610, 151386, 171132, 213915, 252310, 285220, 302772, 328003, 378465, 427830, 504620, 656006, 756930, 855660, 984009, 1312012, 1513860, 1640015, 1968018, 3280030, 3936036, 4920045, 6560060, 9840090, 19680180]

約数ペア:

[(1, 19680180), (2, 9840090), (3, 6560060), (4, 4920045), (5, 3936036), (6, 3280030), (10, 1968018), (12, 1640015), (13, 1513860), (15, 1312012), (20, 984009), (23, 855660), (26, 756930), (30, 656006), (39, 504620), (46, 427830), (52, 378465), (60, 328003), (65, 302772), (69, 285220), (78, 252310), (92, 213915), (115, 171132), (130, 151386), (138, 142610), (156, 126155), (195, 100924), (230, 85566), (260, 75693), (276, 71305), (299, 65820), (345, 57044), (390, 50462), (460, 42783), (598, 32910), (690, 28522), (780, 25231), (897, 21940), (1097, 17940), (1196, 16455), (1380, 14261), (1495, 13164), (1794, 10970), (2194, 8970), (2990, 6582), (3291, 5980), (3588, 5485), (4388, 4485)]