20121581616

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{24733}}^1$

素因数の和:25758

約数の個数: 80

約数和(自身を含む): 55095875424

約数和(自身を除く): 34974293808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 997, 1994, 2991, 3988, 5982, 7976, 11964, 15952, 16949, 23928, 24733, 33898, 47856, 49466, 50847, 67796, 74199, 98932, 101694, 135592, 148398, 197864, 203388, 271184, 296796, 395728, 406776, 420461, 593592, 813552, 840922, 1187184, 1261383, 1681844, 2522766, 3363688, 5045532, 6727376, 10091064, 20182128, 24658801, 49317602, 73976403, 98635204, 147952806, 197270408, 295905612, 394540816, 419199617, 591811224, 838399234, 1183622448, 1257598851, 1676798468, 2515197702, 3353596936, 5030395404, 6707193872, 10060790808, 20121581616]

約数ペア:

[(1, 20121581616), (2, 10060790808), (3, 6707193872), (4, 5030395404), (6, 3353596936), (8, 2515197702), (12, 1676798468), (16, 1257598851), (17, 1183622448), (24, 838399234), (34, 591811224), (48, 419199617), (51, 394540816), (68, 295905612), (102, 197270408), (136, 147952806), (204, 98635204), (272, 73976403), (408, 49317602), (816, 24658801), (997, 20182128), (1994, 10091064), (2991, 6727376), (3988, 5045532), (5982, 3363688), (7976, 2522766), (11964, 1681844), (15952, 1261383), (16949, 1187184), (23928, 840922), (24733, 813552), (33898, 593592), (47856, 420461), (49466, 406776), (50847, 395728), (67796, 296796), (74199, 271184), (98932, 203388), (101694, 197864), (135592, 148398)]