20396400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{739}}^1$

素因数の和:783

約数の個数: 120

約数和(自身を含む): 68269440

約数和(自身を除く): 47873040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 25, 30, 40, 46, 48, 50, 60, 69, 75, 80, 92, 100, 115, 120, 138, 150, 184, 200, 230, 240, 276, 300, 345, 368, 400, 460, 552, 575, 600, 690, 739, 920, 1104, 1150, 1200, 1380, 1478, 1725, 1840, 2217, 2300, 2760, 2956, 3450, 3695, 4434, 4600, 5520, 5912, 6900, 7390, 8868, 9200, 11085, 11824, 13800, 14780, 16997, 17736, 18475, 22170, 27600, 29560, 33994, 35472, 36950, 44340, 50991, 55425, 59120, 67988, 73900, 84985, 88680, 101982, 110850, 135976, 147800, 169970, 177360, 203964, 221700, 254955, 271952, 295600, 339940, 407928, 424925, 443400, 509910, 679880, 815856, 849850, 886800, 1019820, 1274775, 1359760, 1699700, 2039640, 2549550, 3399400, 4079280, 5099100, 6798800, 10198200, 20396400]

約数ペア:

[(1, 20396400), (2, 10198200), (3, 6798800), (4, 5099100), (5, 4079280), (6, 3399400), (8, 2549550), (10, 2039640), (12, 1699700), (15, 1359760), (16, 1274775), (20, 1019820), (23, 886800), (24, 849850), (25, 815856), (30, 679880), (40, 509910), (46, 443400), (48, 424925), (50, 407928), (60, 339940), (69, 295600), (75, 271952), (80, 254955), (92, 221700), (100, 203964), (115, 177360), (120, 169970), (138, 147800), (150, 135976), (184, 110850), (200, 101982), (230, 88680), (240, 84985), (276, 73900), (300, 67988), (345, 59120), (368, 55425), (400, 50991), (460, 44340), (552, 36950), (575, 35472), (600, 33994), (690, 29560), (739, 27600), (920, 22170), (1104, 18475), (1150, 17736), (1200, 16997), (1380, 14780), (1478, 13800), (1725, 11824), (1840, 11085), (2217, 9200), (2300, 8868), (2760, 7390), (2956, 6900), (3450, 5912), (3695, 5520), (4434, 4600)]