19972589520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6401471}}^1$

素因数の和:6401500

約数の個数: 80

約数和(自身を含む): 66677732352

約数和(自身を除く): 46705142832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6401471, 12802942, 19204413, 25605884, 32007355, 38408826, 51211768, 64014710, 76817652, 83219123, 96022065, 102423536, 128029420, 153635304, 166438246, 192044130, 249657369, 256058840, 307270608, 332876492, 384088260, 416095615, 499314738, 512117680, 665752984, 768176520, 832191230, 998629476, 1248286845, 1331505968, 1536353040, 1664382460, 1997258952, 2496573690, 3328764920, 3994517904, 4993147380, 6657529840, 9986294760, 19972589520]

約数ペア:

[(1, 19972589520), (2, 9986294760), (3, 6657529840), (4, 4993147380), (5, 3994517904), (6, 3328764920), (8, 2496573690), (10, 1997258952), (12, 1664382460), (13, 1536353040), (15, 1331505968), (16, 1248286845), (20, 998629476), (24, 832191230), (26, 768176520), (30, 665752984), (39, 512117680), (40, 499314738), (48, 416095615), (52, 384088260), (60, 332876492), (65, 307270608), (78, 256058840), (80, 249657369), (104, 192044130), (120, 166438246), (130, 153635304), (156, 128029420), (195, 102423536), (208, 96022065), (240, 83219123), (260, 76817652), (312, 64014710), (390, 51211768), (520, 38408826), (624, 32007355), (780, 25605884), (1040, 19204413), (1560, 12802942), (3120, 6401471)]