642329960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{2753}}^1$

素因数の和:3090

約数の個数: 64

約数和(自身を含む): 1526817600

約数和(自身を除く): 884487640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 307, 380, 614, 760, 1228, 1535, 2456, 2753, 3070, 5506, 5833, 6140, 11012, 11666, 12280, 13765, 22024, 23332, 27530, 29165, 46664, 52307, 55060, 58330, 104614, 110120, 116660, 209228, 233320, 261535, 418456, 523070, 845171, 1046140, 1690342, 2092280, 3380684, 4225855, 6761368, 8451710, 16058249, 16903420, 32116498, 33806840, 64232996, 80291245, 128465992, 160582490, 321164980, 642329960]

約数ペア:

[(1, 642329960), (2, 321164980), (4, 160582490), (5, 128465992), (8, 80291245), (10, 64232996), (19, 33806840), (20, 32116498), (38, 16903420), (40, 16058249), (76, 8451710), (95, 6761368), (152, 4225855), (190, 3380684), (307, 2092280), (380, 1690342), (614, 1046140), (760, 845171), (1228, 523070), (1535, 418456), (2456, 261535), (2753, 233320), (3070, 209228), (5506, 116660), (5833, 110120), (6140, 104614), (11012, 58330), (11666, 55060), (12280, 52307), (13765, 46664), (22024, 29165), (23332, 27530)]