17987680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 45934560

約数和(自身を除く): 27946880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 61, 76, 80, 95, 97, 122, 152, 160, 190, 194, 244, 304, 305, 380, 388, 485, 488, 608, 610, 760, 776, 970, 976, 1159, 1220, 1520, 1552, 1843, 1940, 1952, 2318, 2440, 3040, 3104, 3686, 3880, 4636, 4880, 5795, 5917, 7372, 7760, 9215, 9272, 9760, 11590, 11834, 14744, 15520, 18430, 18544, 23180, 23668, 29488, 29585, 36860, 37088, 46360, 47336, 58976, 59170, 73720, 92720, 94672, 112423, 118340, 147440, 185440, 189344, 224846, 236680, 294880, 449692, 473360, 562115, 899384, 946720, 1124230, 1798768, 2248460, 3597536, 4496920, 8993840, 17987680]

約数ペア:

[(1, 17987680), (2, 8993840), (4, 4496920), (5, 3597536), (8, 2248460), (10, 1798768), (16, 1124230), (19, 946720), (20, 899384), (32, 562115), (38, 473360), (40, 449692), (61, 294880), (76, 236680), (80, 224846), (95, 189344), (97, 185440), (122, 147440), (152, 118340), (160, 112423), (190, 94672), (194, 92720), (244, 73720), (304, 59170), (305, 58976), (380, 47336), (388, 46360), (485, 37088), (488, 36860), (608, 29585), (610, 29488), (760, 23668), (776, 23180), (970, 18544), (976, 18430), (1159, 15520), (1220, 14744), (1520, 11834), (1552, 11590), (1843, 9760), (1940, 9272), (1952, 9215), (2318, 7760), (2440, 7372), (3040, 5917), (3104, 5795), (3686, 4880), (3880, 4636)]