1284654640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{23039}}^1$

素因数の和:23110

約数の個数: 80

約数和(自身を含む): 3239792640

約数和(自身を除く): 1955138000

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 205, 272, 328, 340, 410, 656, 680, 697, 820, 1360, 1394, 1640, 2788, 3280, 3485, 5576, 6970, 11152, 13940, 23039, 27880, 46078, 55760, 92156, 115195, 184312, 230390, 368624, 391663, 460780, 783326, 921560, 944599, 1566652, 1843120, 1889198, 1958315, 3133304, 3778396, 3916630, 4722995, 6266608, 7556792, 7833260, 9445990, 15113584, 15666520, 16058183, 18891980, 31333040, 32116366, 37783960, 64232732, 75567920, 80290915, 128465464, 160581830, 256930928, 321163660, 642327320, 1284654640]

約数ペア:

[(1, 1284654640), (2, 642327320), (4, 321163660), (5, 256930928), (8, 160581830), (10, 128465464), (16, 80290915), (17, 75567920), (20, 64232732), (34, 37783960), (40, 32116366), (41, 31333040), (68, 18891980), (80, 16058183), (82, 15666520), (85, 15113584), (136, 9445990), (164, 7833260), (170, 7556792), (205, 6266608), (272, 4722995), (328, 3916630), (340, 3778396), (410, 3133304), (656, 1958315), (680, 1889198), (697, 1843120), (820, 1566652), (1360, 944599), (1394, 921560), (1640, 783326), (2788, 460780), (3280, 391663), (3485, 368624), (5576, 230390), (6970, 184312), (11152, 115195), (13940, 92156), (23039, 55760), (27880, 46078)]