87439140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:762

約数の個数: 144

約数和(自身を含む): 287152320

約数和(自身を除く): 199713180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 285, 333, 342, 370, 380, 444, 555, 570, 666, 684, 691, 703, 740, 855, 1110, 1140, 1332, 1382, 1406, 1665, 1710, 2073, 2109, 2220, 2764, 2812, 3330, 3420, 3455, 3515, 4146, 4218, 6219, 6327, 6660, 6910, 7030, 8292, 8436, 10365, 10545, 12438, 12654, 13129, 13820, 14060, 20730, 21090, 24876, 25308, 25567, 26258, 31095, 31635, 39387, 41460, 42180, 51134, 52516, 62190, 63270, 65645, 76701, 78774, 102268, 118161, 124380, 126540, 127835, 131290, 153402, 157548, 196935, 230103, 236322, 255670, 262580, 306804, 383505, 393870, 460206, 472644, 485773, 511340, 590805, 767010, 787740, 920412, 971546, 1150515, 1181610, 1457319, 1534020, 1943092, 2301030, 2363220, 2428865, 2914638, 4371957, 4602060, 4857730, 5829276, 7286595, 8743914, 9715460, 14573190, 17487828, 21859785, 29146380, 43719570, 87439140]

約数ペア:

[(1, 87439140), (2, 43719570), (3, 29146380), (4, 21859785), (5, 17487828), (6, 14573190), (9, 9715460), (10, 8743914), (12, 7286595), (15, 5829276), (18, 4857730), (19, 4602060), (20, 4371957), (30, 2914638), (36, 2428865), (37, 2363220), (38, 2301030), (45, 1943092), (57, 1534020), (60, 1457319), (74, 1181610), (76, 1150515), (90, 971546), (95, 920412), (111, 787740), (114, 767010), (148, 590805), (171, 511340), (180, 485773), (185, 472644), (190, 460206), (222, 393870), (228, 383505), (285, 306804), (333, 262580), (342, 255670), (370, 236322), (380, 230103), (444, 196935), (555, 157548), (570, 153402), (666, 131290), (684, 127835), (691, 126540), (703, 124380), (740, 118161), (855, 102268), (1110, 78774), (1140, 76701), (1332, 65645), (1382, 63270), (1406, 62190), (1665, 52516), (1710, 51134), (2073, 42180), (2109, 41460), (2220, 39387), (2764, 31635), (2812, 31095), (3330, 26258), (3420, 25567), (3455, 25308), (3515, 24876), (4146, 21090), (4218, 20730), (6219, 14060), (6327, 13820), (6660, 13129), (6910, 12654), (7030, 12438), (8292, 10545), (8436, 10365)]