19998793980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{16477}}^1$

素因数の和:17116

約数の個数: 144

約数和(自身を含む): 66289807584

約数和(自身を除く): 46291013604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 613, 660, 990, 1226, 1839, 1980, 2452, 3065, 3678, 5517, 6130, 6743, 7356, 9195, 11034, 12260, 13486, 16477, 18390, 20229, 22068, 26972, 27585, 32954, 33715, 36780, 40458, 49431, 55170, 60687, 65908, 67430, 80916, 82385, 98862, 101145, 110340, 121374, 134860, 148293, 164770, 181247, 197724, 202290, 242748, 247155, 296586, 303435, 329540, 362494, 404580, 494310, 543741, 593172, 606870, 724988, 741465, 906235, 988620, 1087482, 1213740, 1482930, 1631223, 1812470, 2174964, 2718705, 2965860, 3262446, 3624940, 5437410, 6524892, 8156115, 10100401, 10874820, 16312230, 20200802, 30301203, 32624460, 40401604, 50502005, 60602406, 90903609, 101004010, 111104411, 121204812, 151506015, 181807218, 202008020, 222208822, 303012030, 333313233, 363614436, 444417644, 454518045, 555522055, 606024060, 666626466, 909036090, 999939699, 1111044110, 1333252932, 1666566165, 1818072180, 1999879398, 2222088220, 3333132330, 3999758796, 4999698495, 6666264660, 9999396990, 19998793980]

約数ペア:

[(1, 19998793980), (2, 9999396990), (3, 6666264660), (4, 4999698495), (5, 3999758796), (6, 3333132330), (9, 2222088220), (10, 1999879398), (11, 1818072180), (12, 1666566165), (15, 1333252932), (18, 1111044110), (20, 999939699), (22, 909036090), (30, 666626466), (33, 606024060), (36, 555522055), (44, 454518045), (45, 444417644), (55, 363614436), (60, 333313233), (66, 303012030), (90, 222208822), (99, 202008020), (110, 181807218), (132, 151506015), (165, 121204812), (180, 111104411), (198, 101004010), (220, 90903609), (330, 60602406), (396, 50502005), (495, 40401604), (613, 32624460), (660, 30301203), (990, 20200802), (1226, 16312230), (1839, 10874820), (1980, 10100401), (2452, 8156115), (3065, 6524892), (3678, 5437410), (5517, 3624940), (6130, 3262446), (6743, 2965860), (7356, 2718705), (9195, 2174964), (11034, 1812470), (12260, 1631223), (13486, 1482930), (16477, 1213740), (18390, 1087482), (20229, 988620), (22068, 906235), (26972, 741465), (27585, 724988), (32954, 606870), (33715, 593172), (36780, 543741), (40458, 494310), (49431, 404580), (55170, 362494), (60687, 329540), (65908, 303435), (67430, 296586), (80916, 247155), (82385, 242748), (98862, 202290), (101145, 197724), (110340, 181247), (121374, 164770), (134860, 148293)]