639408900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8629}}^1$

素因数の和:8678

約数の個数: 144

約数和(自身を含む): 2097435200

約数和(自身を除く): 1458026300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 25, 26, 30, 38, 39, 50, 52, 57, 60, 65, 75, 76, 78, 95, 100, 114, 130, 150, 156, 190, 195, 228, 247, 260, 285, 300, 325, 380, 390, 475, 494, 570, 650, 741, 780, 950, 975, 988, 1140, 1235, 1300, 1425, 1482, 1900, 1950, 2470, 2850, 2964, 3705, 3900, 4940, 5700, 6175, 7410, 8629, 12350, 14820, 17258, 18525, 24700, 25887, 34516, 37050, 43145, 51774, 74100, 86290, 103548, 112177, 129435, 163951, 172580, 215725, 224354, 258870, 327902, 336531, 431450, 448708, 491853, 517740, 560885, 647175, 655804, 673062, 819755, 862900, 983706, 1121770, 1294350, 1346124, 1639510, 1682655, 1967412, 2131363, 2243540, 2459265, 2588700, 2804425, 3279020, 3365310, 4098775, 4262726, 4918530, 5608850, 6394089, 6730620, 8197550, 8413275, 8525452, 9837060, 10656815, 11217700, 12296325, 12788178, 16395100, 16826550, 21313630, 24592650, 25576356, 31970445, 33653100, 42627260, 49185300, 53284075, 63940890, 106568150, 127881780, 159852225, 213136300, 319704450, 639408900]

約数ペア:

[(1, 639408900), (2, 319704450), (3, 213136300), (4, 159852225), (5, 127881780), (6, 106568150), (10, 63940890), (12, 53284075), (13, 49185300), (15, 42627260), (19, 33653100), (20, 31970445), (25, 25576356), (26, 24592650), (30, 21313630), (38, 16826550), (39, 16395100), (50, 12788178), (52, 12296325), (57, 11217700), (60, 10656815), (65, 9837060), (75, 8525452), (76, 8413275), (78, 8197550), (95, 6730620), (100, 6394089), (114, 5608850), (130, 4918530), (150, 4262726), (156, 4098775), (190, 3365310), (195, 3279020), (228, 2804425), (247, 2588700), (260, 2459265), (285, 2243540), (300, 2131363), (325, 1967412), (380, 1682655), (390, 1639510), (475, 1346124), (494, 1294350), (570, 1121770), (650, 983706), (741, 862900), (780, 819755), (950, 673062), (975, 655804), (988, 647175), (1140, 560885), (1235, 517740), (1300, 491853), (1425, 448708), (1482, 431450), (1900, 336531), (1950, 327902), (2470, 258870), (2850, 224354), (2964, 215725), (3705, 172580), (3900, 163951), (4940, 129435), (5700, 112177), (6175, 103548), (7410, 86290), (8629, 74100), (12350, 51774), (14820, 43145), (17258, 37050), (18525, 34516), (24700, 25887)]