18222440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{683}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 26100760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 46, 58, 92, 115, 116, 145, 184, 230, 232, 290, 460, 580, 667, 683, 920, 1160, 1334, 1366, 2668, 2732, 3335, 3415, 5336, 5464, 6670, 6830, 13340, 13660, 15709, 19807, 26680, 27320, 31418, 39614, 62836, 78545, 79228, 99035, 125672, 157090, 158456, 198070, 314180, 396140, 455561, 628360, 792280, 911122, 1822244, 2277805, 3644488, 4555610, 9111220, 18222440]

約数ペア:

[(1, 18222440), (2, 9111220), (4, 4555610), (5, 3644488), (8, 2277805), (10, 1822244), (20, 911122), (23, 792280), (29, 628360), (40, 455561), (46, 396140), (58, 314180), (92, 198070), (115, 158456), (116, 157090), (145, 125672), (184, 99035), (230, 79228), (232, 78545), (290, 62836), (460, 39614), (580, 31418), (667, 27320), (683, 26680), (920, 19807), (1160, 15709), (1334, 13660), (1366, 13340), (2668, 6830), (2732, 6670), (3335, 5464), (3415, 5336)]