28498920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 90685440

約数和(自身を除く): 62186520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 47, 60, 62, 93, 94, 120, 124, 141, 155, 163, 186, 188, 235, 248, 282, 310, 326, 372, 376, 465, 470, 489, 564, 620, 652, 705, 744, 815, 930, 940, 978, 1128, 1240, 1304, 1410, 1457, 1630, 1860, 1880, 1956, 2445, 2820, 2914, 3260, 3720, 3912, 4371, 4890, 5053, 5640, 5828, 6520, 7285, 7661, 8742, 9780, 10106, 11656, 14570, 15159, 15322, 17484, 19560, 20212, 21855, 22983, 25265, 29140, 30318, 30644, 34968, 38305, 40424, 43710, 45966, 50530, 58280, 60636, 61288, 75795, 76610, 87420, 91932, 101060, 114915, 121272, 151590, 153220, 174840, 183864, 202120, 229830, 237491, 303180, 306440, 459660, 474982, 606360, 712473, 919320, 949964, 1187455, 1424946, 1899928, 2374910, 2849892, 3562365, 4749820, 5699784, 7124730, 9499640, 14249460, 28498920]

約数ペア:

[(1, 28498920), (2, 14249460), (3, 9499640), (4, 7124730), (5, 5699784), (6, 4749820), (8, 3562365), (10, 2849892), (12, 2374910), (15, 1899928), (20, 1424946), (24, 1187455), (30, 949964), (31, 919320), (40, 712473), (47, 606360), (60, 474982), (62, 459660), (93, 306440), (94, 303180), (120, 237491), (124, 229830), (141, 202120), (155, 183864), (163, 174840), (186, 153220), (188, 151590), (235, 121272), (248, 114915), (282, 101060), (310, 91932), (326, 87420), (372, 76610), (376, 75795), (465, 61288), (470, 60636), (489, 58280), (564, 50530), (620, 45966), (652, 43710), (705, 40424), (744, 38305), (815, 34968), (930, 30644), (940, 30318), (978, 29140), (1128, 25265), (1240, 22983), (1304, 21855), (1410, 20212), (1457, 19560), (1630, 17484), (1860, 15322), (1880, 15159), (1956, 14570), (2445, 11656), (2820, 10106), (2914, 9780), (3260, 8742), (3720, 7661), (3912, 7285), (4371, 6520), (4890, 5828), (5053, 5640)]