15997860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 144

約数和(自身を含む): 51996672

約数和(自身を除く): 35998812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 47, 60, 61, 62, 90, 93, 94, 122, 124, 141, 155, 180, 183, 186, 188, 235, 244, 279, 282, 305, 310, 366, 372, 423, 465, 470, 549, 558, 564, 610, 620, 705, 732, 846, 915, 930, 940, 1098, 1116, 1220, 1395, 1410, 1457, 1692, 1830, 1860, 1891, 2115, 2196, 2745, 2790, 2820, 2867, 2914, 3660, 3782, 4230, 4371, 5490, 5580, 5673, 5734, 5828, 7285, 7564, 8460, 8601, 8742, 9455, 10980, 11346, 11468, 13113, 14335, 14570, 17019, 17202, 17484, 18910, 21855, 22692, 25803, 26226, 28365, 28670, 29140, 34038, 34404, 37820, 43005, 43710, 51606, 52452, 56730, 57340, 65565, 68076, 85095, 86010, 87420, 88877, 103212, 113460, 129015, 131130, 170190, 172020, 177754, 258030, 262260, 266631, 340380, 355508, 444385, 516060, 533262, 799893, 888770, 1066524, 1333155, 1599786, 1777540, 2666310, 3199572, 3999465, 5332620, 7998930, 15997860]

約数ペア:

[(1, 15997860), (2, 7998930), (3, 5332620), (4, 3999465), (5, 3199572), (6, 2666310), (9, 1777540), (10, 1599786), (12, 1333155), (15, 1066524), (18, 888770), (20, 799893), (30, 533262), (31, 516060), (36, 444385), (45, 355508), (47, 340380), (60, 266631), (61, 262260), (62, 258030), (90, 177754), (93, 172020), (94, 170190), (122, 131130), (124, 129015), (141, 113460), (155, 103212), (180, 88877), (183, 87420), (186, 86010), (188, 85095), (235, 68076), (244, 65565), (279, 57340), (282, 56730), (305, 52452), (310, 51606), (366, 43710), (372, 43005), (423, 37820), (465, 34404), (470, 34038), (549, 29140), (558, 28670), (564, 28365), (610, 26226), (620, 25803), (705, 22692), (732, 21855), (846, 18910), (915, 17484), (930, 17202), (940, 17019), (1098, 14570), (1116, 14335), (1220, 13113), (1395, 11468), (1410, 11346), (1457, 10980), (1692, 9455), (1830, 8742), (1860, 8601), (1891, 8460), (2115, 7564), (2196, 7285), (2745, 5828), (2790, 5734), (2820, 5673), (2867, 5580), (2914, 5490), (3660, 4371), (3782, 4230)]