28478460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 83994624

約数和(自身を除く): 55516164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 93, 122, 124, 155, 183, 186, 244, 251, 305, 310, 366, 372, 465, 502, 610, 620, 732, 753, 915, 930, 1004, 1220, 1255, 1506, 1830, 1860, 1891, 2510, 3012, 3660, 3765, 3782, 5020, 5673, 7530, 7564, 7781, 9455, 11346, 15060, 15311, 15562, 18910, 22692, 23343, 28365, 30622, 31124, 37820, 38905, 45933, 46686, 56730, 61244, 76555, 77810, 91866, 93372, 113460, 116715, 153110, 155620, 183732, 229665, 233430, 306220, 459330, 466860, 474641, 918660, 949282, 1423923, 1898564, 2373205, 2847846, 4746410, 5695692, 7119615, 9492820, 14239230, 28478460]

約数ペア:

[(1, 28478460), (2, 14239230), (3, 9492820), (4, 7119615), (5, 5695692), (6, 4746410), (10, 2847846), (12, 2373205), (15, 1898564), (20, 1423923), (30, 949282), (31, 918660), (60, 474641), (61, 466860), (62, 459330), (93, 306220), (122, 233430), (124, 229665), (155, 183732), (183, 155620), (186, 153110), (244, 116715), (251, 113460), (305, 93372), (310, 91866), (366, 77810), (372, 76555), (465, 61244), (502, 56730), (610, 46686), (620, 45933), (732, 38905), (753, 37820), (915, 31124), (930, 30622), (1004, 28365), (1220, 23343), (1255, 22692), (1506, 18910), (1830, 15562), (1860, 15311), (1891, 15060), (2510, 11346), (3012, 9455), (3660, 7781), (3765, 7564), (3782, 7530), (5020, 5673)]