78123060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:518

約数の個数: 144

約数和(自身を含む): 254741760

約数和(自身を除く): 176618700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 53, 57, 60, 76, 90, 95, 106, 114, 159, 171, 180, 190, 212, 228, 265, 285, 318, 342, 380, 431, 477, 530, 570, 636, 684, 795, 855, 862, 954, 1007, 1060, 1140, 1293, 1590, 1710, 1724, 1908, 2014, 2155, 2385, 2586, 3021, 3180, 3420, 3879, 4028, 4310, 4770, 5035, 5172, 6042, 6465, 7758, 8189, 8620, 9063, 9540, 10070, 12084, 12930, 15105, 15516, 16378, 18126, 19395, 20140, 22843, 24567, 25860, 30210, 32756, 36252, 38790, 40945, 45315, 45686, 49134, 60420, 68529, 73701, 77580, 81890, 90630, 91372, 98268, 114215, 122835, 137058, 147402, 163780, 181260, 205587, 228430, 245670, 274116, 294804, 342645, 368505, 411174, 434017, 456860, 491340, 685290, 737010, 822348, 868034, 1027935, 1302051, 1370580, 1474020, 1736068, 2055870, 2170085, 2604102, 3906153, 4111740, 4340170, 5208204, 6510255, 7812306, 8680340, 13020510, 15624612, 19530765, 26041020, 39061530, 78123060]

約数ペア:

[(1, 78123060), (2, 39061530), (3, 26041020), (4, 19530765), (5, 15624612), (6, 13020510), (9, 8680340), (10, 7812306), (12, 6510255), (15, 5208204), (18, 4340170), (19, 4111740), (20, 3906153), (30, 2604102), (36, 2170085), (38, 2055870), (45, 1736068), (53, 1474020), (57, 1370580), (60, 1302051), (76, 1027935), (90, 868034), (95, 822348), (106, 737010), (114, 685290), (159, 491340), (171, 456860), (180, 434017), (190, 411174), (212, 368505), (228, 342645), (265, 294804), (285, 274116), (318, 245670), (342, 228430), (380, 205587), (431, 181260), (477, 163780), (530, 147402), (570, 137058), (636, 122835), (684, 114215), (795, 98268), (855, 91372), (862, 90630), (954, 81890), (1007, 77580), (1060, 73701), (1140, 68529), (1293, 60420), (1590, 49134), (1710, 45686), (1724, 45315), (1908, 40945), (2014, 38790), (2155, 36252), (2385, 32756), (2586, 30210), (3021, 25860), (3180, 24567), (3420, 22843), (3879, 20140), (4028, 19395), (4310, 18126), (4770, 16378), (5035, 15516), (5172, 15105), (6042, 12930), (6465, 12084), (7758, 10070), (8189, 9540), (8620, 9063)]