20439900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1747}}^1$

素因数の和:1780

約数の個数: 108

約数和(自身を含む): 69035512

約数和(自身を除く): 48595612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 30, 36, 39, 45, 50, 52, 60, 65, 75, 78, 90, 100, 117, 130, 150, 156, 180, 195, 225, 234, 260, 300, 325, 390, 450, 468, 585, 650, 780, 900, 975, 1170, 1300, 1747, 1950, 2340, 2925, 3494, 3900, 5241, 5850, 6988, 8735, 10482, 11700, 15723, 17470, 20964, 22711, 26205, 31446, 34940, 43675, 45422, 52410, 62892, 68133, 78615, 87350, 90844, 104820, 113555, 131025, 136266, 157230, 174700, 204399, 227110, 262050, 272532, 314460, 340665, 393075, 408798, 454220, 524100, 567775, 681330, 786150, 817596, 1021995, 1135550, 1362660, 1572300, 1703325, 2043990, 2271100, 3406650, 4087980, 5109975, 6813300, 10219950, 20439900]

約数ペア:

[(1, 20439900), (2, 10219950), (3, 6813300), (4, 5109975), (5, 4087980), (6, 3406650), (9, 2271100), (10, 2043990), (12, 1703325), (13, 1572300), (15, 1362660), (18, 1135550), (20, 1021995), (25, 817596), (26, 786150), (30, 681330), (36, 567775), (39, 524100), (45, 454220), (50, 408798), (52, 393075), (60, 340665), (65, 314460), (75, 272532), (78, 262050), (90, 227110), (100, 204399), (117, 174700), (130, 157230), (150, 136266), (156, 131025), (180, 113555), (195, 104820), (225, 90844), (234, 87350), (260, 78615), (300, 68133), (325, 62892), (390, 52410), (450, 45422), (468, 43675), (585, 34940), (650, 31446), (780, 26205), (900, 22711), (975, 20964), (1170, 17470), (1300, 15723), (1747, 11700), (1950, 10482), (2340, 8735), (2925, 6988), (3494, 5850), (3900, 5241)]