280419720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1999}}^1$

素因数の和:2187

約数の個数: 128

約数和(自身を含む): 967680000

約数和(自身を除く): 687260280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 167, 168, 210, 280, 334, 420, 501, 668, 835, 840, 1002, 1169, 1336, 1670, 1999, 2004, 2338, 2505, 3340, 3507, 3998, 4008, 4676, 5010, 5845, 5997, 6680, 7014, 7996, 9352, 9995, 10020, 11690, 11994, 13993, 14028, 15992, 17535, 19990, 20040, 23380, 23988, 27986, 28056, 29985, 35070, 39980, 41979, 46760, 47976, 55972, 59970, 69965, 70140, 79960, 83958, 111944, 119940, 139930, 140280, 167916, 209895, 239880, 279860, 333833, 335832, 419790, 559720, 667666, 839580, 1001499, 1335332, 1669165, 1679160, 2002998, 2336831, 2670664, 3338330, 4005996, 4673662, 5007495, 6676660, 7010493, 8011992, 9347324, 10014990, 11684155, 13353320, 14020986, 18694648, 20029980, 23368310, 28041972, 35052465, 40059960, 46736620, 56083944, 70104930, 93473240, 140209860, 280419720]

約数ペア:

[(1, 280419720), (2, 140209860), (3, 93473240), (4, 70104930), (5, 56083944), (6, 46736620), (7, 40059960), (8, 35052465), (10, 28041972), (12, 23368310), (14, 20029980), (15, 18694648), (20, 14020986), (21, 13353320), (24, 11684155), (28, 10014990), (30, 9347324), (35, 8011992), (40, 7010493), (42, 6676660), (56, 5007495), (60, 4673662), (70, 4005996), (84, 3338330), (105, 2670664), (120, 2336831), (140, 2002998), (167, 1679160), (168, 1669165), (210, 1335332), (280, 1001499), (334, 839580), (420, 667666), (501, 559720), (668, 419790), (835, 335832), (840, 333833), (1002, 279860), (1169, 239880), (1336, 209895), (1670, 167916), (1999, 140280), (2004, 139930), (2338, 119940), (2505, 111944), (3340, 83958), (3507, 79960), (3998, 70140), (4008, 69965), (4676, 59970), (5010, 55972), (5845, 47976), (5997, 46760), (6680, 41979), (7014, 39980), (7996, 35070), (9352, 29985), (9995, 28056), (10020, 27986), (11690, 23988), (11994, 23380), (13993, 20040), (14028, 19990), (15992, 17535)]