28809060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 96526080

約数和(自身を除く): 67717020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 49, 60, 70, 82, 84, 98, 105, 123, 140, 147, 164, 196, 205, 210, 239, 245, 246, 287, 294, 410, 420, 478, 490, 492, 574, 588, 615, 717, 735, 820, 861, 956, 980, 1148, 1195, 1230, 1434, 1435, 1470, 1673, 1722, 2009, 2390, 2460, 2868, 2870, 2940, 3346, 3444, 3585, 4018, 4305, 4780, 5019, 5740, 6027, 6692, 7170, 8036, 8365, 8610, 9799, 10038, 10045, 11711, 12054, 14340, 16730, 17220, 19598, 20076, 20090, 23422, 24108, 25095, 29397, 30135, 33460, 35133, 39196, 40180, 46844, 48995, 50190, 58555, 58794, 60270, 68593, 70266, 97990, 100380, 117110, 117588, 120540, 137186, 140532, 146985, 175665, 195980, 205779, 234220, 274372, 293970, 342965, 351330, 411558, 480151, 587940, 685930, 702660, 823116, 960302, 1028895, 1371860, 1440453, 1920604, 2057790, 2400755, 2880906, 4115580, 4801510, 5761812, 7202265, 9603020, 14404530, 28809060]

約数ペア:

[(1, 28809060), (2, 14404530), (3, 9603020), (4, 7202265), (5, 5761812), (6, 4801510), (7, 4115580), (10, 2880906), (12, 2400755), (14, 2057790), (15, 1920604), (20, 1440453), (21, 1371860), (28, 1028895), (30, 960302), (35, 823116), (41, 702660), (42, 685930), (49, 587940), (60, 480151), (70, 411558), (82, 351330), (84, 342965), (98, 293970), (105, 274372), (123, 234220), (140, 205779), (147, 195980), (164, 175665), (196, 146985), (205, 140532), (210, 137186), (239, 120540), (245, 117588), (246, 117110), (287, 100380), (294, 97990), (410, 70266), (420, 68593), (478, 60270), (490, 58794), (492, 58555), (574, 50190), (588, 48995), (615, 46844), (717, 40180), (735, 39196), (820, 35133), (861, 33460), (956, 30135), (980, 29397), (1148, 25095), (1195, 24108), (1230, 23422), (1434, 20090), (1435, 20076), (1470, 19598), (1673, 17220), (1722, 16730), (2009, 14340), (2390, 12054), (2460, 11711), (2868, 10045), (2870, 10038), (2940, 9799), (3346, 8610), (3444, 8365), (3585, 8036), (4018, 7170), (4305, 6692), (4780, 6027), (5019, 5740)]