21993132320

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{91577}}^1$

素因数の和:91690

約数の個数: 96

約数和(自身を含む): 55386374400

約数和(自身を除く): 33393242080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 79, 80, 95, 152, 158, 160, 190, 304, 316, 380, 395, 608, 632, 760, 790, 1264, 1501, 1520, 1580, 2528, 3002, 3040, 3160, 6004, 6320, 7505, 12008, 12640, 15010, 24016, 30020, 48032, 60040, 91577, 120080, 183154, 240160, 366308, 457885, 732616, 915770, 1465232, 1739963, 1831540, 2930464, 3479926, 3663080, 6959852, 7234583, 7326160, 8699815, 13919704, 14469166, 14652320, 17399630, 27839408, 28938332, 34799260, 36172915, 55678816, 57876664, 69598520, 72345830, 115753328, 137457077, 139197040, 144691660, 231506656, 274914154, 278394080, 289383320, 549828308, 578766640, 687285385, 1099656616, 1157533280, 1374570770, 2199313232, 2749141540, 4398626464, 5498283080, 10996566160, 21993132320]

約数ペア:

[(1, 21993132320), (2, 10996566160), (4, 5498283080), (5, 4398626464), (8, 2749141540), (10, 2199313232), (16, 1374570770), (19, 1157533280), (20, 1099656616), (32, 687285385), (38, 578766640), (40, 549828308), (76, 289383320), (79, 278394080), (80, 274914154), (95, 231506656), (152, 144691660), (158, 139197040), (160, 137457077), (190, 115753328), (304, 72345830), (316, 69598520), (380, 57876664), (395, 55678816), (608, 36172915), (632, 34799260), (760, 28938332), (790, 27839408), (1264, 17399630), (1501, 14652320), (1520, 14469166), (1580, 13919704), (2528, 8699815), (3002, 7326160), (3040, 7234583), (3160, 6959852), (6004, 3663080), (6320, 3479926), (7505, 2930464), (12008, 1831540), (12640, 1739963), (15010, 1465232), (24016, 915770), (30020, 732616), (48032, 457885), (60040, 366308), (91577, 240160), (120080, 183154)]