28779386440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{503}}^1\times {\mathrm{877}}^1$

素因数の和:1631

約数の個数: 128

約数和(自身を含む): 74554421760

約数和(自身を除く): 45775035320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 233, 280, 466, 503, 877, 932, 1006, 1165, 1631, 1754, 1864, 2012, 2330, 2515, 3262, 3508, 3521, 4024, 4385, 4660, 5030, 6139, 6524, 7016, 7042, 8155, 8770, 9320, 10060, 12278, 13048, 14084, 16310, 17540, 17605, 20120, 24556, 28168, 30695, 32620, 35080, 35210, 49112, 61390, 65240, 70420, 117199, 122780, 140840, 204341, 234398, 245560, 408682, 441131, 468796, 585995, 817364, 820393, 882262, 937592, 1021705, 1171990, 1430387, 1634728, 1640786, 1764524, 2043410, 2205655, 2343980, 2860774, 3087917, 3281572, 3529048, 4086820, 4101965, 4411310, 4687960, 5721548, 6175834, 6563144, 7151935, 8173640, 8203930, 8822620, 11443096, 12351668, 14303870, 15439585, 16407860, 17645240, 24703336, 28607740, 30879170, 32815720, 57215480, 61758340, 102783523, 123516680, 205567046, 411134092, 513917615, 719484661, 822268184, 1027835230, 1438969322, 2055670460, 2877938644, 3597423305, 4111340920, 5755877288, 7194846610, 14389693220, 28779386440]

約数ペア:

[(1, 28779386440), (2, 14389693220), (4, 7194846610), (5, 5755877288), (7, 4111340920), (8, 3597423305), (10, 2877938644), (14, 2055670460), (20, 1438969322), (28, 1027835230), (35, 822268184), (40, 719484661), (56, 513917615), (70, 411134092), (140, 205567046), (233, 123516680), (280, 102783523), (466, 61758340), (503, 57215480), (877, 32815720), (932, 30879170), (1006, 28607740), (1165, 24703336), (1631, 17645240), (1754, 16407860), (1864, 15439585), (2012, 14303870), (2330, 12351668), (2515, 11443096), (3262, 8822620), (3508, 8203930), (3521, 8173640), (4024, 7151935), (4385, 6563144), (4660, 6175834), (5030, 5721548), (6139, 4687960), (6524, 4411310), (7016, 4101965), (7042, 4086820), (8155, 3529048), (8770, 3281572), (9320, 3087917), (10060, 2860774), (12278, 2343980), (13048, 2205655), (14084, 2043410), (16310, 1764524), (17540, 1640786), (17605, 1634728), (20120, 1430387), (24556, 1171990), (28168, 1021705), (30695, 937592), (32620, 882262), (35080, 820393), (35210, 817364), (49112, 585995), (61390, 468796), (65240, 441131), (70420, 408682), (117199, 245560), (122780, 234398), (140840, 204341)]