990592980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{55217}}^1$

素因数の和:55265

約数の個数: 96

約数和(自身を含む): 3116945664

約数和(自身を除く): 2126352684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 23, 26, 30, 39, 46, 52, 60, 65, 69, 78, 92, 115, 130, 138, 156, 195, 230, 260, 276, 299, 345, 390, 460, 598, 690, 780, 897, 1196, 1380, 1495, 1794, 2990, 3588, 4485, 5980, 8970, 17940, 55217, 110434, 165651, 220868, 276085, 331302, 552170, 662604, 717821, 828255, 1104340, 1269991, 1435642, 1656510, 2153463, 2539982, 2871284, 3313020, 3589105, 3809973, 4306926, 5079964, 6349955, 7178210, 7619946, 8613852, 10767315, 12699910, 14356420, 15239892, 16509883, 19049865, 21534630, 25399820, 33019766, 38099730, 43069260, 49529649, 66039532, 76199460, 82549415, 99059298, 165098830, 198118596, 247648245, 330197660, 495296490, 990592980]

約数ペア:

[(1, 990592980), (2, 495296490), (3, 330197660), (4, 247648245), (5, 198118596), (6, 165098830), (10, 99059298), (12, 82549415), (13, 76199460), (15, 66039532), (20, 49529649), (23, 43069260), (26, 38099730), (30, 33019766), (39, 25399820), (46, 21534630), (52, 19049865), (60, 16509883), (65, 15239892), (69, 14356420), (78, 12699910), (92, 10767315), (115, 8613852), (130, 7619946), (138, 7178210), (156, 6349955), (195, 5079964), (230, 4306926), (260, 3809973), (276, 3589105), (299, 3313020), (345, 2871284), (390, 2539982), (460, 2153463), (598, 1656510), (690, 1435642), (780, 1269991), (897, 1104340), (1196, 828255), (1380, 717821), (1495, 662604), (1794, 552170), (2990, 331302), (3588, 276085), (4485, 220868), (5980, 165651), (8970, 110434), (17940, 55217)]