255216780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15581}}^1$

素因数の和:15616

約数の個数: 144

約数和(自身を含む): 952870464

約数和(自身を除く): 697653684

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 52, 60, 63, 65, 70, 78, 84, 90, 91, 105, 117, 126, 130, 140, 156, 180, 182, 195, 210, 234, 252, 260, 273, 315, 364, 390, 420, 455, 468, 546, 585, 630, 780, 819, 910, 1092, 1170, 1260, 1365, 1638, 1820, 2340, 2730, 3276, 4095, 5460, 8190, 15581, 16380, 31162, 46743, 62324, 77905, 93486, 109067, 140229, 155810, 186972, 202553, 218134, 233715, 280458, 311620, 327201, 405106, 436268, 467430, 545335, 560916, 607659, 654402, 701145, 810212, 934860, 981603, 1012765, 1090670, 1215318, 1308804, 1402290, 1417871, 1636005, 1822977, 1963206, 2025530, 2181340, 2430636, 2804580, 2835742, 3038295, 3272010, 3645954, 3926412, 4051060, 4253613, 4908015, 5671484, 6076590, 6544020, 7089355, 7291908, 8507226, 9114885, 9816030, 12153180, 12760839, 14178710, 17014452, 18229770, 19632060, 21268065, 25521678, 28357420, 36459540, 42536130, 51043356, 63804195, 85072260, 127608390, 255216780]

約数ペア:

[(1, 255216780), (2, 127608390), (3, 85072260), (4, 63804195), (5, 51043356), (6, 42536130), (7, 36459540), (9, 28357420), (10, 25521678), (12, 21268065), (13, 19632060), (14, 18229770), (15, 17014452), (18, 14178710), (20, 12760839), (21, 12153180), (26, 9816030), (28, 9114885), (30, 8507226), (35, 7291908), (36, 7089355), (39, 6544020), (42, 6076590), (45, 5671484), (52, 4908015), (60, 4253613), (63, 4051060), (65, 3926412), (70, 3645954), (78, 3272010), (84, 3038295), (90, 2835742), (91, 2804580), (105, 2430636), (117, 2181340), (126, 2025530), (130, 1963206), (140, 1822977), (156, 1636005), (180, 1417871), (182, 1402290), (195, 1308804), (210, 1215318), (234, 1090670), (252, 1012765), (260, 981603), (273, 934860), (315, 810212), (364, 701145), (390, 654402), (420, 607659), (455, 560916), (468, 545335), (546, 467430), (585, 436268), (630, 405106), (780, 327201), (819, 311620), (910, 280458), (1092, 233715), (1170, 218134), (1260, 202553), (1365, 186972), (1638, 155810), (1820, 140229), (2340, 109067), (2730, 93486), (3276, 77905), (4095, 62324), (5460, 46743), (8190, 31162), (15581, 16380)]