17663540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 42577920

約数和(自身を除く): 24914380

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 43, 46, 47, 76, 86, 92, 94, 95, 115, 172, 188, 190, 215, 230, 235, 380, 430, 437, 460, 470, 817, 860, 874, 893, 940, 989, 1081, 1634, 1748, 1786, 1978, 2021, 2162, 2185, 3268, 3572, 3956, 4042, 4085, 4324, 4370, 4465, 4945, 5405, 8084, 8170, 8740, 8930, 9890, 10105, 10810, 16340, 17860, 18791, 19780, 20210, 20539, 21620, 37582, 38399, 40420, 41078, 46483, 75164, 76798, 82156, 92966, 93955, 102695, 153596, 185932, 187910, 191995, 205390, 232415, 375820, 383990, 410780, 464830, 767980, 883177, 929660, 1766354, 3532708, 4415885, 8831770, 17663540]

約数ペア:

[(1, 17663540), (2, 8831770), (4, 4415885), (5, 3532708), (10, 1766354), (19, 929660), (20, 883177), (23, 767980), (38, 464830), (43, 410780), (46, 383990), (47, 375820), (76, 232415), (86, 205390), (92, 191995), (94, 187910), (95, 185932), (115, 153596), (172, 102695), (188, 93955), (190, 92966), (215, 82156), (230, 76798), (235, 75164), (380, 46483), (430, 41078), (437, 40420), (460, 38399), (470, 37582), (817, 21620), (860, 20539), (874, 20210), (893, 19780), (940, 18791), (989, 17860), (1081, 16340), (1634, 10810), (1748, 10105), (1786, 9890), (1978, 8930), (2021, 8740), (2162, 8170), (2185, 8084), (3268, 5405), (3572, 4945), (3956, 4465), (4042, 4370), (4085, 4324)]