291742240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:626

約数の個数: 96

約数和(自身を含む): 718502400

約数和(自身を除く): 426760160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 131, 155, 160, 248, 262, 310, 449, 496, 524, 620, 655, 898, 992, 1048, 1240, 1310, 1796, 2096, 2245, 2480, 2620, 3592, 4061, 4192, 4490, 4960, 5240, 7184, 8122, 8980, 10480, 13919, 14368, 16244, 17960, 20305, 20960, 27838, 32488, 35920, 40610, 55676, 58819, 64976, 69595, 71840, 81220, 111352, 117638, 129952, 139190, 162440, 222704, 235276, 278380, 294095, 324880, 445408, 470552, 556760, 588190, 649760, 941104, 1113520, 1176380, 1823389, 1882208, 2227040, 2352760, 3646778, 4705520, 7293556, 9116945, 9411040, 14587112, 18233890, 29174224, 36467780, 58348448, 72935560, 145871120, 291742240]

約数ペア:

[(1, 291742240), (2, 145871120), (4, 72935560), (5, 58348448), (8, 36467780), (10, 29174224), (16, 18233890), (20, 14587112), (31, 9411040), (32, 9116945), (40, 7293556), (62, 4705520), (80, 3646778), (124, 2352760), (131, 2227040), (155, 1882208), (160, 1823389), (248, 1176380), (262, 1113520), (310, 941104), (449, 649760), (496, 588190), (524, 556760), (620, 470552), (655, 445408), (898, 324880), (992, 294095), (1048, 278380), (1240, 235276), (1310, 222704), (1796, 162440), (2096, 139190), (2245, 129952), (2480, 117638), (2620, 111352), (3592, 81220), (4061, 71840), (4192, 69595), (4490, 64976), (4960, 58819), (5240, 55676), (7184, 40610), (8122, 35920), (8980, 32488), (10480, 27838), (13919, 20960), (14368, 20305), (16244, 17960)]