20383520

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 31871200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 32, 40, 46, 58, 80, 92, 115, 116, 145, 160, 184, 191, 230, 232, 290, 368, 382, 460, 464, 580, 667, 736, 764, 920, 928, 955, 1160, 1334, 1528, 1840, 1910, 2320, 2668, 3056, 3335, 3680, 3820, 4393, 4640, 5336, 5539, 6112, 6670, 7640, 8786, 10672, 11078, 13340, 15280, 17572, 21344, 21965, 22156, 26680, 27695, 30560, 35144, 43930, 44312, 53360, 55390, 70288, 87860, 88624, 106720, 110780, 127397, 140576, 175720, 177248, 221560, 254794, 351440, 443120, 509588, 636985, 702880, 886240, 1019176, 1273970, 2038352, 2547940, 4076704, 5095880, 10191760, 20383520]

約数ペア:

[(1, 20383520), (2, 10191760), (4, 5095880), (5, 4076704), (8, 2547940), (10, 2038352), (16, 1273970), (20, 1019176), (23, 886240), (29, 702880), (32, 636985), (40, 509588), (46, 443120), (58, 351440), (80, 254794), (92, 221560), (115, 177248), (116, 175720), (145, 140576), (160, 127397), (184, 110780), (191, 106720), (230, 88624), (232, 87860), (290, 70288), (368, 55390), (382, 53360), (460, 44312), (464, 43930), (580, 35144), (667, 30560), (736, 27695), (764, 26680), (920, 22156), (928, 21965), (955, 21344), (1160, 17572), (1334, 15280), (1528, 13340), (1840, 11078), (1910, 10672), (2320, 8786), (2668, 7640), (3056, 6670), (3335, 6112), (3680, 5539), (3820, 5336), (4393, 4640)]