28917420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2221}}^1$

素因数の和:2271

約数の個数: 96

約数和(自身を含む): 95563776

約数和(自身を除く): 66646356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2221, 2604, 3255, 4340, 4442, 6510, 6663, 8884, 11105, 13020, 13326, 15547, 22210, 26652, 31094, 33315, 44420, 46641, 62188, 66630, 68851, 77735, 93282, 133260, 137702, 155470, 186564, 206553, 233205, 275404, 310940, 344255, 413106, 466410, 481957, 688510, 826212, 932820, 963914, 1032765, 1377020, 1445871, 1927828, 2065530, 2409785, 2891742, 4131060, 4819570, 5783484, 7229355, 9639140, 14458710, 28917420]

約数ペア:

[(1, 28917420), (2, 14458710), (3, 9639140), (4, 7229355), (5, 5783484), (6, 4819570), (7, 4131060), (10, 2891742), (12, 2409785), (14, 2065530), (15, 1927828), (20, 1445871), (21, 1377020), (28, 1032765), (30, 963914), (31, 932820), (35, 826212), (42, 688510), (60, 481957), (62, 466410), (70, 413106), (84, 344255), (93, 310940), (105, 275404), (124, 233205), (140, 206553), (155, 186564), (186, 155470), (210, 137702), (217, 133260), (310, 93282), (372, 77735), (420, 68851), (434, 66630), (465, 62188), (620, 46641), (651, 44420), (868, 33315), (930, 31094), (1085, 26652), (1302, 22210), (1860, 15547), (2170, 13326), (2221, 13020), (2604, 11105), (3255, 8884), (4340, 6663), (4442, 6510)]