20963810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25692190

約数列:

[1, 2, 5, 7, 10, 14, 23, 29, 35, 46, 58, 70, 115, 145, 161, 203, 230, 290, 322, 406, 449, 667, 805, 898, 1015, 1334, 1610, 2030, 2245, 3143, 3335, 4490, 4669, 6286, 6670, 9338, 10327, 13021, 15715, 20654, 23345, 26042, 31430, 46690, 51635, 65105, 72289, 91147, 103270, 130210, 144578, 182294, 299483, 361445, 455735, 598966, 722890, 911470, 1497415, 2096381, 2994830, 4192762, 10481905, 20963810]

約数ペア:

[(1, 20963810), (2, 10481905), (5, 4192762), (7, 2994830), (10, 2096381), (14, 1497415), (23, 911470), (29, 722890), (35, 598966), (46, 455735), (58, 361445), (70, 299483), (115, 182294), (145, 144578), (161, 130210), (203, 103270), (230, 91147), (290, 72289), (322, 65105), (406, 51635), (449, 46690), (667, 31430), (805, 26042), (898, 23345), (1015, 20654), (1334, 15715), (1610, 13021), (2030, 10327), (2245, 9338), (3143, 6670), (3335, 6286), (4490, 4669)]