257187420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3581}}^1$

素因数の和:3625

約数の個数: 192

約数和(自身を含む): 962841600

約数和(自身を除く): 705654180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3581, 3591, 3780, 3990, 4788, 5130, 5985, 7162, 7182, 7980, 10260, 10743, 11970, 14324, 14364, 17905, 17955, 21486, 23940, 25067, 32229, 35810, 35910, 42972, 50134, 53715, 64458, 68039, 71620, 71820, 75201, 96687, 100268, 107430, 125335, 128916, 136078, 150402, 161145, 193374, 204117, 214860, 225603, 250670, 272156, 300804, 322290, 340195, 376005, 386748, 408234, 451206, 476273, 483435, 501340, 612351, 644580, 676809, 680390, 752010, 816468, 902412, 952546, 966870, 1020585, 1128015, 1224702, 1353618, 1360780, 1428819, 1504020, 1837053, 1905092, 1933740, 2041170, 2256030, 2381365, 2449404, 2707236, 2857638, 3061755, 3384045, 3674106, 4082340, 4286457, 4512060, 4762730, 5715276, 6123510, 6768090, 7144095, 7348212, 8572914, 9185265, 9525460, 12247020, 12859371, 13536180, 14288190, 17145828, 18370530, 21432285, 25718742, 28576380, 36741060, 42864570, 51437484, 64296855, 85729140, 128593710, 257187420]

約数ペア:

[(1, 257187420), (2, 128593710), (3, 85729140), (4, 64296855), (5, 51437484), (6, 42864570), (7, 36741060), (9, 28576380), (10, 25718742), (12, 21432285), (14, 18370530), (15, 17145828), (18, 14288190), (19, 13536180), (20, 12859371), (21, 12247020), (27, 9525460), (28, 9185265), (30, 8572914), (35, 7348212), (36, 7144095), (38, 6768090), (42, 6123510), (45, 5715276), (54, 4762730), (57, 4512060), (60, 4286457), (63, 4082340), (70, 3674106), (76, 3384045), (84, 3061755), (90, 2857638), (95, 2707236), (105, 2449404), (108, 2381365), (114, 2256030), (126, 2041170), (133, 1933740), (135, 1905092), (140, 1837053), (171, 1504020), (180, 1428819), (189, 1360780), (190, 1353618), (210, 1224702), (228, 1128015), (252, 1020585), (266, 966870), (270, 952546), (285, 902412), (315, 816468), (342, 752010), (378, 680390), (380, 676809), (399, 644580), (420, 612351), (513, 501340), (532, 483435), (540, 476273), (570, 451206), (630, 408234), (665, 386748), (684, 376005), (756, 340195), (798, 322290), (855, 300804), (945, 272156), (1026, 250670), (1140, 225603), (1197, 214860), (1260, 204117), (1330, 193374), (1596, 161145), (1710, 150402), (1890, 136078), (1995, 128916), (2052, 125335), (2394, 107430), (2565, 100268), (2660, 96687), (3420, 75201), (3581, 71820), (3591, 71620), (3780, 68039), (3990, 64458), (4788, 53715), (5130, 50134), (5985, 42972), (7162, 35910), (7182, 35810), (7980, 32229), (10260, 25067), (10743, 23940), (11970, 21486), (14324, 17955), (14364, 17905)]