81226140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1731

約数の個数: 96

約数和(自身を含む): 245118720

約数和(自身を除く): 163892580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 43, 57, 60, 76, 86, 95, 114, 129, 172, 190, 215, 228, 258, 285, 380, 430, 516, 570, 645, 817, 860, 1140, 1290, 1634, 1657, 2451, 2580, 3268, 3314, 4085, 4902, 4971, 6628, 8170, 8285, 9804, 9942, 12255, 16340, 16570, 19884, 24510, 24855, 31483, 33140, 49020, 49710, 62966, 71251, 94449, 99420, 125932, 142502, 157415, 188898, 213753, 285004, 314830, 356255, 377796, 427506, 472245, 629660, 712510, 855012, 944490, 1068765, 1353769, 1425020, 1888980, 2137530, 2707538, 4061307, 4275060, 5415076, 6768845, 8122614, 13537690, 16245228, 20306535, 27075380, 40613070, 81226140]

約数ペア:

[(1, 81226140), (2, 40613070), (3, 27075380), (4, 20306535), (5, 16245228), (6, 13537690), (10, 8122614), (12, 6768845), (15, 5415076), (19, 4275060), (20, 4061307), (30, 2707538), (38, 2137530), (43, 1888980), (57, 1425020), (60, 1353769), (76, 1068765), (86, 944490), (95, 855012), (114, 712510), (129, 629660), (172, 472245), (190, 427506), (215, 377796), (228, 356255), (258, 314830), (285, 285004), (380, 213753), (430, 188898), (516, 157415), (570, 142502), (645, 125932), (817, 99420), (860, 94449), (1140, 71251), (1290, 62966), (1634, 49710), (1657, 49020), (2451, 33140), (2580, 31483), (3268, 24855), (3314, 24510), (4085, 19884), (4902, 16570), (4971, 16340), (6628, 12255), (8170, 9942), (8285, 9804)]