19496620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 51057216

約数和(自身を除く): 31560596

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 401, 442, 572, 715, 748, 802, 884, 935, 1105, 1430, 1604, 1870, 2005, 2210, 2431, 2860, 3740, 4010, 4411, 4420, 4862, 5213, 6817, 8020, 8822, 9724, 10426, 12155, 13634, 17644, 20852, 22055, 24310, 26065, 27268, 34085, 44110, 48620, 52130, 57343, 68170, 74987, 88220, 88621, 104260, 114686, 136340, 149974, 177242, 229372, 286715, 299948, 354484, 374935, 443105, 573430, 749870, 886210, 974831, 1146860, 1499740, 1772420, 1949662, 3899324, 4874155, 9748310, 19496620]

約数ペア:

[(1, 19496620), (2, 9748310), (4, 4874155), (5, 3899324), (10, 1949662), (11, 1772420), (13, 1499740), (17, 1146860), (20, 974831), (22, 886210), (26, 749870), (34, 573430), (44, 443105), (52, 374935), (55, 354484), (65, 299948), (68, 286715), (85, 229372), (110, 177242), (130, 149974), (143, 136340), (170, 114686), (187, 104260), (220, 88621), (221, 88220), (260, 74987), (286, 68170), (340, 57343), (374, 52130), (401, 48620), (442, 44110), (572, 34085), (715, 27268), (748, 26065), (802, 24310), (884, 22055), (935, 20852), (1105, 17644), (1430, 13634), (1604, 12155), (1870, 10426), (2005, 9724), (2210, 8822), (2431, 8020), (2860, 6817), (3740, 5213), (4010, 4862), (4411, 4420)]