28180240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1033}}^1$

素因数の和:1088

約数の個数: 80

約数和(自身を含む): 73852416

約数和(自身を除く): 45672176

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1033, 1240, 1364, 1705, 2066, 2480, 2728, 3410, 4132, 5165, 5456, 6820, 8264, 10330, 11363, 13640, 16528, 20660, 22726, 27280, 32023, 41320, 45452, 56815, 64046, 82640, 90904, 113630, 128092, 160115, 181808, 227260, 256184, 320230, 352253, 454520, 512368, 640460, 704506, 909040, 1280920, 1409012, 1761265, 2561840, 2818024, 3522530, 5636048, 7045060, 14090120, 28180240]

約数ペア:

[(1, 28180240), (2, 14090120), (4, 7045060), (5, 5636048), (8, 3522530), (10, 2818024), (11, 2561840), (16, 1761265), (20, 1409012), (22, 1280920), (31, 909040), (40, 704506), (44, 640460), (55, 512368), (62, 454520), (80, 352253), (88, 320230), (110, 256184), (124, 227260), (155, 181808), (176, 160115), (220, 128092), (248, 113630), (310, 90904), (341, 82640), (440, 64046), (496, 56815), (620, 45452), (682, 41320), (880, 32023), (1033, 27280), (1240, 22726), (1364, 20660), (1705, 16528), (2066, 13640), (2480, 11363), (2728, 10330), (3410, 8264), (4132, 6820), (5165, 5456)]