28733980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{619}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 66245760

約数和(自身を除く): 37511780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 619, 844, 1055, 1238, 2110, 2321, 2476, 3095, 4220, 4642, 6190, 6809, 9284, 11605, 12380, 13618, 23210, 27236, 34045, 46420, 68090, 130609, 136180, 261218, 522436, 653045, 1306090, 1436699, 2612180, 2873398, 5746796, 7183495, 14366990, 28733980]

約数ペア:

[(1, 28733980), (2, 14366990), (4, 7183495), (5, 5746796), (10, 2873398), (11, 2612180), (20, 1436699), (22, 1306090), (44, 653045), (55, 522436), (110, 261218), (211, 136180), (220, 130609), (422, 68090), (619, 46420), (844, 34045), (1055, 27236), (1238, 23210), (2110, 13618), (2321, 12380), (2476, 11605), (3095, 9284), (4220, 6809), (4642, 6190)]