72808380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 144

約数和(自身を含む): 236964000

約数和(自身を除く): 164155620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 61, 76, 90, 95, 114, 122, 171, 180, 183, 190, 228, 244, 285, 305, 342, 349, 366, 380, 549, 570, 610, 684, 698, 732, 855, 915, 1047, 1098, 1140, 1159, 1220, 1396, 1710, 1745, 1830, 2094, 2196, 2318, 2745, 3141, 3420, 3477, 3490, 3660, 4188, 4636, 5235, 5490, 5795, 6282, 6631, 6954, 6980, 10431, 10470, 10980, 11590, 12564, 13262, 13908, 15705, 17385, 19893, 20862, 20940, 21289, 23180, 26524, 31410, 33155, 34770, 39786, 41724, 42578, 52155, 59679, 62820, 63867, 66310, 69540, 79572, 85156, 99465, 104310, 106445, 119358, 127734, 132620, 191601, 198930, 208620, 212890, 238716, 255468, 298395, 319335, 383202, 397860, 404491, 425780, 596790, 638670, 766404, 808982, 958005, 1193580, 1213473, 1277340, 1617964, 1916010, 2022455, 2426946, 3640419, 3832020, 4044910, 4853892, 6067365, 7280838, 8089820, 12134730, 14561676, 18202095, 24269460, 36404190, 72808380]

約数ペア:

[(1, 72808380), (2, 36404190), (3, 24269460), (4, 18202095), (5, 14561676), (6, 12134730), (9, 8089820), (10, 7280838), (12, 6067365), (15, 4853892), (18, 4044910), (19, 3832020), (20, 3640419), (30, 2426946), (36, 2022455), (38, 1916010), (45, 1617964), (57, 1277340), (60, 1213473), (61, 1193580), (76, 958005), (90, 808982), (95, 766404), (114, 638670), (122, 596790), (171, 425780), (180, 404491), (183, 397860), (190, 383202), (228, 319335), (244, 298395), (285, 255468), (305, 238716), (342, 212890), (349, 208620), (366, 198930), (380, 191601), (549, 132620), (570, 127734), (610, 119358), (684, 106445), (698, 104310), (732, 99465), (855, 85156), (915, 79572), (1047, 69540), (1098, 66310), (1140, 63867), (1159, 62820), (1220, 59679), (1396, 52155), (1710, 42578), (1745, 41724), (1830, 39786), (2094, 34770), (2196, 33155), (2318, 31410), (2745, 26524), (3141, 23180), (3420, 21289), (3477, 20940), (3490, 20862), (3660, 19893), (4188, 17385), (4636, 15705), (5235, 13908), (5490, 13262), (5795, 12564), (6282, 11590), (6631, 10980), (6954, 10470), (6980, 10431)]