28638420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 84188160

約数和(自身を除く): 55549740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 89, 93, 124, 155, 173, 178, 186, 267, 310, 346, 356, 372, 445, 465, 519, 534, 620, 692, 865, 890, 930, 1038, 1068, 1335, 1730, 1780, 1860, 2076, 2595, 2670, 2759, 3460, 5190, 5340, 5363, 5518, 8277, 10380, 10726, 11036, 13795, 15397, 16089, 16554, 21452, 26815, 27590, 30794, 32178, 33108, 41385, 46191, 53630, 55180, 61588, 64356, 76985, 80445, 82770, 92382, 107260, 153970, 160890, 165540, 184764, 230955, 307940, 321780, 461910, 477307, 923820, 954614, 1431921, 1909228, 2386535, 2863842, 4773070, 5727684, 7159605, 9546140, 14319210, 28638420]

約数ペア:

[(1, 28638420), (2, 14319210), (3, 9546140), (4, 7159605), (5, 5727684), (6, 4773070), (10, 2863842), (12, 2386535), (15, 1909228), (20, 1431921), (30, 954614), (31, 923820), (60, 477307), (62, 461910), (89, 321780), (93, 307940), (124, 230955), (155, 184764), (173, 165540), (178, 160890), (186, 153970), (267, 107260), (310, 92382), (346, 82770), (356, 80445), (372, 76985), (445, 64356), (465, 61588), (519, 55180), (534, 53630), (620, 46191), (692, 41385), (865, 33108), (890, 32178), (930, 30794), (1038, 27590), (1068, 26815), (1335, 21452), (1730, 16554), (1780, 16089), (1860, 15397), (2076, 13795), (2595, 11036), (2670, 10726), (2759, 10380), (3460, 8277), (5190, 5518), (5340, 5363)]