18118940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 48190464

約数和(自身を除く): 30071524

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 161, 170, 230, 238, 322, 331, 340, 391, 460, 476, 595, 644, 662, 782, 805, 1190, 1324, 1564, 1610, 1655, 1955, 2317, 2380, 2737, 3220, 3310, 3910, 4634, 5474, 5627, 6620, 7613, 7820, 9268, 10948, 11254, 11585, 13685, 15226, 22508, 23170, 27370, 28135, 30452, 38065, 39389, 46340, 53291, 54740, 56270, 76130, 78778, 106582, 112540, 129421, 152260, 157556, 196945, 213164, 258842, 266455, 393890, 517684, 532910, 647105, 787780, 905947, 1065820, 1294210, 1811894, 2588420, 3623788, 4529735, 9059470, 18118940]

約数ペア:

[(1, 18118940), (2, 9059470), (4, 4529735), (5, 3623788), (7, 2588420), (10, 1811894), (14, 1294210), (17, 1065820), (20, 905947), (23, 787780), (28, 647105), (34, 532910), (35, 517684), (46, 393890), (68, 266455), (70, 258842), (85, 213164), (92, 196945), (115, 157556), (119, 152260), (140, 129421), (161, 112540), (170, 106582), (230, 78778), (238, 76130), (322, 56270), (331, 54740), (340, 53291), (391, 46340), (460, 39389), (476, 38065), (595, 30452), (644, 28135), (662, 27370), (782, 23170), (805, 22508), (1190, 15226), (1324, 13685), (1564, 11585), (1610, 11254), (1655, 10948), (1955, 9268), (2317, 7820), (2380, 7613), (2737, 6620), (3220, 5627), (3310, 5474), (3910, 4634)]