1520820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 5660928

約数和(自身を除く): 4140108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 71, 84, 85, 90, 102, 105, 119, 126, 140, 142, 153, 170, 180, 204, 210, 213, 238, 252, 255, 284, 306, 315, 340, 355, 357, 420, 426, 476, 497, 510, 595, 612, 630, 639, 710, 714, 765, 852, 994, 1020, 1065, 1071, 1190, 1207, 1260, 1278, 1420, 1428, 1491, 1530, 1785, 1988, 2130, 2142, 2380, 2414, 2485, 2556, 2982, 3060, 3195, 3570, 3621, 4260, 4284, 4473, 4828, 4970, 5355, 5964, 6035, 6390, 7140, 7242, 7455, 8449, 8946, 9940, 10710, 10863, 12070, 12780, 14484, 14910, 16898, 17892, 18105, 21420, 21726, 22365, 24140, 25347, 29820, 33796, 36210, 42245, 43452, 44730, 50694, 54315, 72420, 76041, 84490, 89460, 101388, 108630, 126735, 152082, 168980, 217260, 253470, 304164, 380205, 506940, 760410, 1520820]

約数ペア:

[(1, 1520820), (2, 760410), (3, 506940), (4, 380205), (5, 304164), (6, 253470), (7, 217260), (9, 168980), (10, 152082), (12, 126735), (14, 108630), (15, 101388), (17, 89460), (18, 84490), (20, 76041), (21, 72420), (28, 54315), (30, 50694), (34, 44730), (35, 43452), (36, 42245), (42, 36210), (45, 33796), (51, 29820), (60, 25347), (63, 24140), (68, 22365), (70, 21726), (71, 21420), (84, 18105), (85, 17892), (90, 16898), (102, 14910), (105, 14484), (119, 12780), (126, 12070), (140, 10863), (142, 10710), (153, 9940), (170, 8946), (180, 8449), (204, 7455), (210, 7242), (213, 7140), (238, 6390), (252, 6035), (255, 5964), (284, 5355), (306, 4970), (315, 4828), (340, 4473), (355, 4284), (357, 4260), (420, 3621), (426, 3570), (476, 3195), (497, 3060), (510, 2982), (595, 2556), (612, 2485), (630, 2414), (639, 2380), (710, 2142), (714, 2130), (765, 1988), (852, 1785), (994, 1530), (1020, 1491), (1065, 1428), (1071, 1420), (1190, 1278), (1207, 1260)]