12903440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 34831104

約数和(自身を除く): 21927664

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 43, 44, 55, 62, 80, 86, 88, 110, 121, 124, 155, 172, 176, 215, 220, 242, 248, 310, 341, 344, 430, 440, 473, 484, 496, 605, 620, 682, 688, 860, 880, 946, 968, 1210, 1240, 1333, 1364, 1705, 1720, 1892, 1936, 2365, 2420, 2480, 2666, 2728, 3410, 3440, 3751, 3784, 4730, 4840, 5203, 5332, 5456, 6665, 6820, 7502, 7568, 9460, 9680, 10406, 10664, 13330, 13640, 14663, 15004, 18755, 18920, 20812, 21328, 26015, 26660, 27280, 29326, 30008, 37510, 37840, 41624, 52030, 53320, 58652, 60016, 73315, 75020, 83248, 104060, 106640, 117304, 146630, 150040, 161293, 208120, 234608, 293260, 300080, 322586, 416240, 586520, 645172, 806465, 1173040, 1290344, 1612930, 2580688, 3225860, 6451720, 12903440]

約数ペア:

[(1, 12903440), (2, 6451720), (4, 3225860), (5, 2580688), (8, 1612930), (10, 1290344), (11, 1173040), (16, 806465), (20, 645172), (22, 586520), (31, 416240), (40, 322586), (43, 300080), (44, 293260), (55, 234608), (62, 208120), (80, 161293), (86, 150040), (88, 146630), (110, 117304), (121, 106640), (124, 104060), (155, 83248), (172, 75020), (176, 73315), (215, 60016), (220, 58652), (242, 53320), (248, 52030), (310, 41624), (341, 37840), (344, 37510), (430, 30008), (440, 29326), (473, 27280), (484, 26660), (496, 26015), (605, 21328), (620, 20812), (682, 18920), (688, 18755), (860, 15004), (880, 14663), (946, 13640), (968, 13330), (1210, 10664), (1240, 10406), (1333, 9680), (1364, 9460), (1705, 7568), (1720, 7502), (1892, 6820), (1936, 6665), (2365, 5456), (2420, 5332), (2480, 5203), (2666, 4840), (2728, 4730), (3410, 3784), (3440, 3751)]