645639210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 1788853248

約数和(自身を除く): 1143214038

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 71, 90, 115, 138, 142, 191, 207, 213, 230, 345, 355, 382, 414, 426, 529, 573, 639, 690, 710, 955, 1035, 1058, 1065, 1146, 1278, 1587, 1633, 1719, 1910, 2070, 2130, 2645, 2865, 3174, 3195, 3266, 3438, 4393, 4761, 4899, 5290, 5730, 6390, 7935, 8165, 8595, 8786, 9522, 9798, 13179, 13561, 14697, 15870, 16330, 17190, 21965, 23805, 24495, 26358, 27122, 29394, 37559, 39537, 40683, 43930, 47610, 48990, 65895, 67805, 73485, 75118, 79074, 81366, 101039, 112677, 122049, 131790, 135610, 146970, 187795, 197685, 202078, 203415, 225354, 244098, 303117, 311903, 338031, 375590, 395370, 406830, 505195, 563385, 606234, 610245, 623806, 676062, 909351, 935709, 1010390, 1126770, 1220490, 1515585, 1559515, 1690155, 1818702, 1871418, 2807127, 3031170, 3119030, 3380310, 4546755, 4678545, 5614254, 7173769, 9093510, 9357090, 14035635, 14347538, 21521307, 28071270, 35868845, 43042614, 64563921, 71737690, 107606535, 129127842, 215213070, 322819605, 645639210]

約数ペア:

[(1, 645639210), (2, 322819605), (3, 215213070), (5, 129127842), (6, 107606535), (9, 71737690), (10, 64563921), (15, 43042614), (18, 35868845), (23, 28071270), (30, 21521307), (45, 14347538), (46, 14035635), (69, 9357090), (71, 9093510), (90, 7173769), (115, 5614254), (138, 4678545), (142, 4546755), (191, 3380310), (207, 3119030), (213, 3031170), (230, 2807127), (345, 1871418), (355, 1818702), (382, 1690155), (414, 1559515), (426, 1515585), (529, 1220490), (573, 1126770), (639, 1010390), (690, 935709), (710, 909351), (955, 676062), (1035, 623806), (1058, 610245), (1065, 606234), (1146, 563385), (1278, 505195), (1587, 406830), (1633, 395370), (1719, 375590), (1910, 338031), (2070, 311903), (2130, 303117), (2645, 244098), (2865, 225354), (3174, 203415), (3195, 202078), (3266, 197685), (3438, 187795), (4393, 146970), (4761, 135610), (4899, 131790), (5290, 122049), (5730, 112677), (6390, 101039), (7935, 81366), (8165, 79074), (8595, 75118), (8786, 73485), (9522, 67805), (9798, 65895), (13179, 48990), (13561, 47610), (14697, 43930), (15870, 40683), (16330, 39537), (17190, 37559), (21965, 29394), (23805, 27122), (24495, 26358)]