20120850040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{2789}}^1$

素因数の和:2977

約数の個数: 128

約数和(自身を含む): 47837563200

約数和(自身を除く): 27716713160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 83, 106, 164, 166, 205, 212, 265, 328, 332, 410, 415, 424, 530, 664, 820, 830, 1060, 1640, 1660, 2120, 2173, 2789, 3320, 3403, 4346, 4399, 5578, 6806, 8692, 8798, 10865, 11156, 13612, 13945, 17015, 17384, 17596, 21730, 21995, 22312, 27224, 27890, 34030, 35192, 43460, 43990, 55780, 68060, 86920, 87980, 111560, 114349, 136120, 147817, 175960, 180359, 228698, 231487, 295634, 360718, 457396, 462974, 571745, 591268, 721436, 739085, 901795, 914792, 925948, 1143490, 1157435, 1182536, 1442872, 1478170, 1803590, 1851896, 2286980, 2314870, 2956340, 3607180, 4573960, 4629740, 5912680, 6060497, 7214360, 9259480, 9490967, 12120994, 12268811, 18981934, 24241988, 24537622, 30302485, 37963868, 47454835, 48483976, 49075244, 60604970, 61344055, 75927736, 94909670, 98150488, 121209940, 122688110, 189819340, 242419880, 245376220, 379638680, 490752440, 503021251, 1006042502, 2012085004, 2515106255, 4024170008, 5030212510, 10060425020, 20120850040]

約数ペア:

[(1, 20120850040), (2, 10060425020), (4, 5030212510), (5, 4024170008), (8, 2515106255), (10, 2012085004), (20, 1006042502), (40, 503021251), (41, 490752440), (53, 379638680), (82, 245376220), (83, 242419880), (106, 189819340), (164, 122688110), (166, 121209940), (205, 98150488), (212, 94909670), (265, 75927736), (328, 61344055), (332, 60604970), (410, 49075244), (415, 48483976), (424, 47454835), (530, 37963868), (664, 30302485), (820, 24537622), (830, 24241988), (1060, 18981934), (1640, 12268811), (1660, 12120994), (2120, 9490967), (2173, 9259480), (2789, 7214360), (3320, 6060497), (3403, 5912680), (4346, 4629740), (4399, 4573960), (5578, 3607180), (6806, 2956340), (8692, 2314870), (8798, 2286980), (10865, 1851896), (11156, 1803590), (13612, 1478170), (13945, 1442872), (17015, 1182536), (17384, 1157435), (17596, 1143490), (21730, 925948), (21995, 914792), (22312, 901795), (27224, 739085), (27890, 721436), (34030, 591268), (35192, 571745), (43460, 462974), (43990, 457396), (55780, 360718), (68060, 295634), (86920, 231487), (87980, 228698), (111560, 180359), (114349, 175960), (136120, 147817)]