20007128440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{65323}}^1$

素因数の和:65397

約数の個数: 128

約数和(自身を含む): 52677273600

約数和(自身を除く): 32670145160

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 95, 104, 124, 130, 152, 155, 190, 247, 248, 260, 310, 380, 403, 494, 520, 589, 620, 760, 806, 988, 1178, 1235, 1240, 1612, 1976, 2015, 2356, 2470, 2945, 3224, 4030, 4712, 4940, 5890, 7657, 8060, 9880, 11780, 15314, 16120, 23560, 30628, 38285, 61256, 65323, 76570, 130646, 153140, 261292, 306280, 326615, 522584, 653230, 849199, 1241137, 1306460, 1698398, 2025013, 2482274, 2612920, 3396796, 4050026, 4245995, 4964548, 6205685, 6793592, 8100052, 8491990, 9929096, 10125065, 12411370, 16134781, 16200104, 16983980, 20250130, 24822740, 26325169, 32269562, 33967960, 38475247, 40500260, 49645480, 52650338, 64539124, 76950494, 80673905, 81000520, 105300676, 129078248, 131625845, 153900988, 161347810, 192376235, 210601352, 263251690, 307801976, 322695620, 384752470, 500178211, 526503380, 645391240, 769504940, 1000356422, 1053006760, 1539009880, 2000712844, 2500891055, 4001425688, 5001782110, 10003564220, 20007128440]

約数ペア:

[(1, 20007128440), (2, 10003564220), (4, 5001782110), (5, 4001425688), (8, 2500891055), (10, 2000712844), (13, 1539009880), (19, 1053006760), (20, 1000356422), (26, 769504940), (31, 645391240), (38, 526503380), (40, 500178211), (52, 384752470), (62, 322695620), (65, 307801976), (76, 263251690), (95, 210601352), (104, 192376235), (124, 161347810), (130, 153900988), (152, 131625845), (155, 129078248), (190, 105300676), (247, 81000520), (248, 80673905), (260, 76950494), (310, 64539124), (380, 52650338), (403, 49645480), (494, 40500260), (520, 38475247), (589, 33967960), (620, 32269562), (760, 26325169), (806, 24822740), (988, 20250130), (1178, 16983980), (1235, 16200104), (1240, 16134781), (1612, 12411370), (1976, 10125065), (2015, 9929096), (2356, 8491990), (2470, 8100052), (2945, 6793592), (3224, 6205685), (4030, 4964548), (4712, 4245995), (4940, 4050026), (5890, 3396796), (7657, 2612920), (8060, 2482274), (9880, 2025013), (11780, 1698398), (15314, 1306460), (16120, 1241137), (23560, 849199), (30628, 653230), (38285, 522584), (61256, 326615), (65323, 306280), (76570, 261292), (130646, 153140)]