245199780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8461}}^1$

素因数の和:8506

約数の個数: 144

約数和(自身を含む): 887088384

約数和(自身を除く): 641888604

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 805, 828, 966, 1035, 1260, 1380, 1449, 1610, 1932, 2070, 2415, 2898, 3220, 4140, 4830, 5796, 7245, 8461, 9660, 14490, 16922, 25383, 28980, 33844, 42305, 50766, 59227, 76149, 84610, 101532, 118454, 126915, 152298, 169220, 177681, 194603, 236908, 253830, 296135, 304596, 355362, 380745, 389206, 507660, 533043, 583809, 592270, 710724, 761490, 778412, 888405, 973015, 1066086, 1167618, 1184540, 1362221, 1522980, 1751427, 1776810, 1946030, 2132172, 2335236, 2665215, 2724442, 2919045, 3502854, 3553620, 3892060, 4086663, 5330430, 5448884, 5838090, 6811105, 7005708, 8173326, 8757135, 10660860, 11676180, 12259989, 13622210, 16346652, 17514270, 20433315, 24519978, 27244420, 35028540, 40866630, 49039956, 61299945, 81733260, 122599890, 245199780]

約数ペア:

[(1, 245199780), (2, 122599890), (3, 81733260), (4, 61299945), (5, 49039956), (6, 40866630), (7, 35028540), (9, 27244420), (10, 24519978), (12, 20433315), (14, 17514270), (15, 16346652), (18, 13622210), (20, 12259989), (21, 11676180), (23, 10660860), (28, 8757135), (30, 8173326), (35, 7005708), (36, 6811105), (42, 5838090), (45, 5448884), (46, 5330430), (60, 4086663), (63, 3892060), (69, 3553620), (70, 3502854), (84, 2919045), (90, 2724442), (92, 2665215), (105, 2335236), (115, 2132172), (126, 1946030), (138, 1776810), (140, 1751427), (161, 1522980), (180, 1362221), (207, 1184540), (210, 1167618), (230, 1066086), (252, 973015), (276, 888405), (315, 778412), (322, 761490), (345, 710724), (414, 592270), (420, 583809), (460, 533043), (483, 507660), (630, 389206), (644, 380745), (690, 355362), (805, 304596), (828, 296135), (966, 253830), (1035, 236908), (1260, 194603), (1380, 177681), (1449, 169220), (1610, 152298), (1932, 126915), (2070, 118454), (2415, 101532), (2898, 84610), (3220, 76149), (4140, 59227), (4830, 50766), (5796, 42305), (7245, 33844), (8461, 28980), (9660, 25383), (14490, 16922)]