72803440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 179809920

約数和(自身を除く): 107006480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 211, 227, 304, 380, 422, 454, 760, 844, 908, 1055, 1135, 1520, 1688, 1816, 2110, 2270, 3376, 3632, 4009, 4220, 4313, 4540, 8018, 8440, 8626, 9080, 16036, 16880, 17252, 18160, 20045, 21565, 32072, 34504, 40090, 43130, 47897, 64144, 69008, 80180, 86260, 95794, 160360, 172520, 191588, 239485, 320720, 345040, 383176, 478970, 766352, 910043, 957940, 1820086, 1915880, 3640172, 3831760, 4550215, 7280344, 9100430, 14560688, 18200860, 36401720, 72803440]

約数ペア:

[(1, 72803440), (2, 36401720), (4, 18200860), (5, 14560688), (8, 9100430), (10, 7280344), (16, 4550215), (19, 3831760), (20, 3640172), (38, 1915880), (40, 1820086), (76, 957940), (80, 910043), (95, 766352), (152, 478970), (190, 383176), (211, 345040), (227, 320720), (304, 239485), (380, 191588), (422, 172520), (454, 160360), (760, 95794), (844, 86260), (908, 80180), (1055, 69008), (1135, 64144), (1520, 47897), (1688, 43130), (1816, 40090), (2110, 34504), (2270, 32072), (3376, 21565), (3632, 20045), (4009, 18160), (4220, 17252), (4313, 16880), (4540, 16036), (8018, 9080), (8440, 8626)]