78718920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3023}}^1$

素因数の和:3075

約数の個数: 128

約数和(自身を含む): 278691840

約数和(自身を除く): 199972920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3023, 3255, 3720, 4340, 5208, 6046, 6510, 8680, 9069, 12092, 13020, 15115, 18138, 21161, 24184, 26040, 30230, 36276, 42322, 45345, 60460, 63483, 72552, 84644, 90690, 93713, 105805, 120920, 126966, 169288, 181380, 187426, 211610, 253932, 281139, 317415, 362760, 374852, 423220, 468565, 507864, 562278, 634830, 655991, 749704, 846440, 937130, 1124556, 1269660, 1311982, 1405695, 1874260, 1967973, 2249112, 2539320, 2623964, 2811390, 3279955, 3748520, 3935946, 5247928, 5622780, 6559910, 7871892, 9839865, 11245560, 13119820, 15743784, 19679730, 26239640, 39359460, 78718920]

約数ペア:

[(1, 78718920), (2, 39359460), (3, 26239640), (4, 19679730), (5, 15743784), (6, 13119820), (7, 11245560), (8, 9839865), (10, 7871892), (12, 6559910), (14, 5622780), (15, 5247928), (20, 3935946), (21, 3748520), (24, 3279955), (28, 2811390), (30, 2623964), (31, 2539320), (35, 2249112), (40, 1967973), (42, 1874260), (56, 1405695), (60, 1311982), (62, 1269660), (70, 1124556), (84, 937130), (93, 846440), (105, 749704), (120, 655991), (124, 634830), (140, 562278), (155, 507864), (168, 468565), (186, 423220), (210, 374852), (217, 362760), (248, 317415), (280, 281139), (310, 253932), (372, 211610), (420, 187426), (434, 181380), (465, 169288), (620, 126966), (651, 120920), (744, 105805), (840, 93713), (868, 90690), (930, 84644), (1085, 72552), (1240, 63483), (1302, 60460), (1736, 45345), (1860, 42322), (2170, 36276), (2604, 30230), (3023, 26040), (3255, 24184), (3720, 21161), (4340, 18138), (5208, 15115), (6046, 13020), (6510, 12092), (8680, 9069)]