402178810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2107

約数の個数: 64

約数和(自身を含む): 829440000

約数和(自身を除く): 427261190

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 59, 62, 110, 118, 155, 295, 310, 341, 590, 649, 682, 1298, 1705, 1829, 1999, 3245, 3410, 3658, 3998, 6490, 9145, 9995, 18290, 19990, 20119, 21989, 40238, 43978, 61969, 100595, 109945, 117941, 123938, 201190, 219890, 235882, 309845, 589705, 619690, 681659, 1179410, 1297351, 1363318, 2594702, 3408295, 3656171, 6486755, 6816590, 7312342, 12973510, 18280855, 36561710, 40217881, 80435762, 201089405, 402178810]

約数ペア:

[(1, 402178810), (2, 201089405), (5, 80435762), (10, 40217881), (11, 36561710), (22, 18280855), (31, 12973510), (55, 7312342), (59, 6816590), (62, 6486755), (110, 3656171), (118, 3408295), (155, 2594702), (295, 1363318), (310, 1297351), (341, 1179410), (590, 681659), (649, 619690), (682, 589705), (1298, 309845), (1705, 235882), (1829, 219890), (1999, 201190), (3245, 123938), (3410, 117941), (3658, 109945), (3998, 100595), (6490, 61969), (9145, 43978), (9995, 40238), (18290, 21989), (19990, 20119)]