2821720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{53}}^1$

素因数の和:97

約数の個数: 64

約数和(自身を含む): 7115040

約数和(自身を除く): 4293320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 121, 212, 220, 242, 265, 424, 440, 484, 530, 583, 605, 968, 1060, 1166, 1210, 1331, 2120, 2332, 2420, 2662, 2915, 4664, 4840, 5324, 5830, 6413, 6655, 10648, 11660, 12826, 13310, 23320, 25652, 26620, 32065, 51304, 53240, 64130, 70543, 128260, 141086, 256520, 282172, 352715, 564344, 705430, 1410860, 2821720]

約数ペア:

[(1, 2821720), (2, 1410860), (4, 705430), (5, 564344), (8, 352715), (10, 282172), (11, 256520), (20, 141086), (22, 128260), (40, 70543), (44, 64130), (53, 53240), (55, 51304), (88, 32065), (106, 26620), (110, 25652), (121, 23320), (212, 13310), (220, 12826), (242, 11660), (265, 10648), (424, 6655), (440, 6413), (484, 5830), (530, 5324), (583, 4840), (605, 4664), (968, 2915), (1060, 2662), (1166, 2420), (1210, 2332), (1331, 2120)]