20931200

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 53627520

約数和(自身を除く): 32696320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 200, 211, 248, 310, 320, 400, 422, 496, 620, 640, 775, 800, 844, 992, 1055, 1240, 1550, 1600, 1688, 1984, 2110, 2480, 3100, 3200, 3376, 3968, 4220, 4960, 5275, 6200, 6541, 6752, 8440, 9920, 10550, 12400, 13082, 13504, 16880, 19840, 21100, 24800, 26164, 27008, 32705, 33760, 42200, 49600, 52328, 65410, 67520, 84400, 99200, 104656, 130820, 135040, 163525, 168800, 209312, 261640, 327050, 337600, 418624, 523280, 654100, 675200, 837248, 1046560, 1308200, 2093120, 2616400, 4186240, 5232800, 10465600, 20931200]

約数ペア:

[(1, 20931200), (2, 10465600), (4, 5232800), (5, 4186240), (8, 2616400), (10, 2093120), (16, 1308200), (20, 1046560), (25, 837248), (31, 675200), (32, 654100), (40, 523280), (50, 418624), (62, 337600), (64, 327050), (80, 261640), (100, 209312), (124, 168800), (128, 163525), (155, 135040), (160, 130820), (200, 104656), (211, 99200), (248, 84400), (310, 67520), (320, 65410), (400, 52328), (422, 49600), (496, 42200), (620, 33760), (640, 32705), (775, 27008), (800, 26164), (844, 24800), (992, 21100), (1055, 19840), (1240, 16880), (1550, 13504), (1600, 13082), (1688, 12400), (1984, 10550), (2110, 9920), (2480, 8440), (3100, 6752), (3200, 6541), (3376, 6200), (3968, 5275), (4220, 4960)]