20541690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 58430736

約数和(自身を除く): 37889046

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 97, 117, 130, 181, 194, 195, 234, 291, 362, 390, 485, 543, 582, 585, 873, 905, 970, 1086, 1170, 1261, 1455, 1629, 1746, 1810, 2353, 2522, 2715, 2910, 3258, 3783, 4365, 4706, 5430, 6305, 7059, 7566, 8145, 8730, 11349, 11765, 12610, 14118, 16290, 17557, 18915, 21177, 22698, 23530, 35114, 35295, 37830, 42354, 52671, 56745, 70590, 87785, 105342, 105885, 113490, 158013, 175570, 211770, 228241, 263355, 316026, 456482, 526710, 684723, 790065, 1141205, 1369446, 1580130, 2054169, 2282410, 3423615, 4108338, 6847230, 10270845, 20541690]

約数ペア:

[(1, 20541690), (2, 10270845), (3, 6847230), (5, 4108338), (6, 3423615), (9, 2282410), (10, 2054169), (13, 1580130), (15, 1369446), (18, 1141205), (26, 790065), (30, 684723), (39, 526710), (45, 456482), (65, 316026), (78, 263355), (90, 228241), (97, 211770), (117, 175570), (130, 158013), (181, 113490), (194, 105885), (195, 105342), (234, 87785), (291, 70590), (362, 56745), (390, 52671), (485, 42354), (543, 37830), (582, 35295), (585, 35114), (873, 23530), (905, 22698), (970, 21177), (1086, 18915), (1170, 17557), (1261, 16290), (1455, 14118), (1629, 12610), (1746, 11765), (1810, 11349), (2353, 8730), (2522, 8145), (2715, 7566), (2910, 7059), (3258, 6305), (3783, 5430), (4365, 4706)]