55321980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:664

約数の個数: 144

約数和(自身を含む): 186310656

約数和(自身を除く): 130988676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 49, 60, 62, 70, 84, 93, 98, 105, 124, 140, 147, 155, 186, 196, 210, 217, 245, 294, 310, 372, 420, 434, 465, 490, 588, 607, 620, 651, 735, 868, 930, 980, 1085, 1214, 1302, 1470, 1519, 1821, 1860, 2170, 2428, 2604, 2940, 3035, 3038, 3255, 3642, 4249, 4340, 4557, 6070, 6076, 6510, 7284, 7595, 8498, 9105, 9114, 12140, 12747, 13020, 15190, 16996, 18210, 18228, 18817, 21245, 22785, 25494, 29743, 30380, 36420, 37634, 42490, 45570, 50988, 56451, 59486, 63735, 75268, 84980, 89229, 91140, 94085, 112902, 118972, 127470, 131719, 148715, 178458, 188170, 225804, 254940, 263438, 282255, 297430, 356916, 376340, 395157, 446145, 526876, 564510, 594860, 658595, 790314, 892290, 922033, 1129020, 1317190, 1580628, 1784580, 1844066, 1975785, 2634380, 2766099, 3688132, 3951570, 4610165, 5532198, 7903140, 9220330, 11064396, 13830495, 18440660, 27660990, 55321980]

約数ペア:

[(1, 55321980), (2, 27660990), (3, 18440660), (4, 13830495), (5, 11064396), (6, 9220330), (7, 7903140), (10, 5532198), (12, 4610165), (14, 3951570), (15, 3688132), (20, 2766099), (21, 2634380), (28, 1975785), (30, 1844066), (31, 1784580), (35, 1580628), (42, 1317190), (49, 1129020), (60, 922033), (62, 892290), (70, 790314), (84, 658595), (93, 594860), (98, 564510), (105, 526876), (124, 446145), (140, 395157), (147, 376340), (155, 356916), (186, 297430), (196, 282255), (210, 263438), (217, 254940), (245, 225804), (294, 188170), (310, 178458), (372, 148715), (420, 131719), (434, 127470), (465, 118972), (490, 112902), (588, 94085), (607, 91140), (620, 89229), (651, 84980), (735, 75268), (868, 63735), (930, 59486), (980, 56451), (1085, 50988), (1214, 45570), (1302, 42490), (1470, 37634), (1519, 36420), (1821, 30380), (1860, 29743), (2170, 25494), (2428, 22785), (2604, 21245), (2940, 18817), (3035, 18228), (3038, 18210), (3255, 16996), (3642, 15190), (4249, 13020), (4340, 12747), (4557, 12140), (6070, 9114), (6076, 9105), (6510, 8498), (7284, 7595)]