2154980140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{383}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 4790016000

約数和(自身を除く): 2635035860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 89, 109, 116, 145, 178, 218, 290, 356, 383, 436, 445, 545, 580, 766, 890, 1090, 1532, 1780, 1915, 2180, 2581, 3161, 3830, 5162, 6322, 7660, 9701, 10324, 11107, 12644, 12905, 15805, 19402, 22214, 25810, 31610, 34087, 38804, 41747, 44428, 48505, 51620, 55535, 63220, 68174, 83494, 97010, 111070, 136348, 166988, 170435, 194020, 208735, 222140, 281329, 340870, 417470, 562658, 681740, 834940, 988523, 1125316, 1210663, 1406645, 1977046, 2421326, 2813290, 3715483, 3954092, 4842652, 4942615, 5626580, 6053315, 7430966, 9885230, 12106630, 14861932, 18577415, 19770460, 24213260, 37154830, 74309660, 107749007, 215498014, 430996028, 538745035, 1077490070, 2154980140]

約数ペア:

[(1, 2154980140), (2, 1077490070), (4, 538745035), (5, 430996028), (10, 215498014), (20, 107749007), (29, 74309660), (58, 37154830), (89, 24213260), (109, 19770460), (116, 18577415), (145, 14861932), (178, 12106630), (218, 9885230), (290, 7430966), (356, 6053315), (383, 5626580), (436, 4942615), (445, 4842652), (545, 3954092), (580, 3715483), (766, 2813290), (890, 2421326), (1090, 1977046), (1532, 1406645), (1780, 1210663), (1915, 1125316), (2180, 988523), (2581, 834940), (3161, 681740), (3830, 562658), (5162, 417470), (6322, 340870), (7660, 281329), (9701, 222140), (10324, 208735), (11107, 194020), (12644, 170435), (12905, 166988), (15805, 136348), (19402, 111070), (22214, 97010), (25810, 83494), (31610, 68174), (34087, 63220), (38804, 55535), (41747, 51620), (44428, 48505)]