1978188794920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9421}}^1\times {\mathrm{23753}}^1$

素因数の和:33215

約数の個数: 128

約数和(自身を含む): 5076015063840

約数和(自身を除く): 3097826268920

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 8840, 9421, 18842, 23753, 37684, 47105, 47506, 75368, 94210, 95012, 118765, 122473, 160157, 188420, 190024, 237530, 244946, 308789, 320314, 376840, 403801, 475060, 489892, 612365, 617578, 640628, 800785, 807602, 950120, 979784, 1224730, 1235156, 1281256, 1543945, 1601570, 1615204, 2019005, 2082041, 2449460, 2470312, 3087890, 3203140, 3230408, 4038010, 4164082, 4898920, 5249413, 6175780, 6406280, 8076020, 8328164, 10410205, 10498826, 12351560, 16152040, 16656328, 20820410, 20997652, 26247065, 41640820, 41995304, 52494130, 83281640, 104988260, 209976520, 223777013, 447554026, 895108052, 1118885065, 1790216104, 2237770130, 2909101169, 3804209221, 4475540260, 5818202338, 7608418442, 8951080520, 11636404676, 14545505845, 15216836884, 19021046105, 23272809352, 29091011690, 30433673768, 38042092210, 49454719873, 58182023380, 76084184420, 98909439746, 116364046760, 152168368840, 197818879492, 247273599365, 395637758984, 494547198730, 989094397460, 1978188794920]

約数ペア:

[(1, 1978188794920), (2, 989094397460), (4, 494547198730), (5, 395637758984), (8, 247273599365), (10, 197818879492), (13, 152168368840), (17, 116364046760), (20, 98909439746), (26, 76084184420), (34, 58182023380), (40, 49454719873), (52, 38042092210), (65, 30433673768), (68, 29091011690), (85, 23272809352), (104, 19021046105), (130, 15216836884), (136, 14545505845), (170, 11636404676), (221, 8951080520), (260, 7608418442), (340, 5818202338), (442, 4475540260), (520, 3804209221), (680, 2909101169), (884, 2237770130), (1105, 1790216104), (1768, 1118885065), (2210, 895108052), (4420, 447554026), (8840, 223777013), (9421, 209976520), (18842, 104988260), (23753, 83281640), (37684, 52494130), (47105, 41995304), (47506, 41640820), (75368, 26247065), (94210, 20997652), (95012, 20820410), (118765, 16656328), (122473, 16152040), (160157, 12351560), (188420, 10498826), (190024, 10410205), (237530, 8328164), (244946, 8076020), (308789, 6406280), (320314, 6175780), (376840, 5249413), (403801, 4898920), (475060, 4164082), (489892, 4038010), (612365, 3230408), (617578, 3203140), (640628, 3087890), (800785, 2470312), (807602, 2449460), (950120, 2082041), (979784, 2019005), (1224730, 1615204), (1235156, 1601570), (1281256, 1543945)]