31306590

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 98167680

約数和(自身を除く): 66861090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 31, 35, 42, 45, 49, 62, 63, 70, 90, 93, 98, 105, 126, 147, 155, 186, 210, 217, 229, 245, 279, 294, 310, 315, 434, 441, 458, 465, 490, 558, 630, 651, 687, 735, 882, 930, 1085, 1145, 1302, 1374, 1395, 1470, 1519, 1603, 1953, 2061, 2170, 2205, 2290, 2790, 3038, 3206, 3255, 3435, 3906, 4122, 4410, 4557, 4809, 6510, 6870, 7099, 7595, 8015, 9114, 9618, 9765, 10305, 11221, 13671, 14198, 14427, 15190, 16030, 19530, 20610, 21297, 22442, 22785, 24045, 27342, 28854, 33663, 35495, 42594, 45570, 48090, 49693, 56105, 63891, 67326, 68355, 70990, 72135, 99386, 100989, 106485, 112210, 127782, 136710, 144270, 149079, 168315, 201978, 212970, 248465, 298158, 319455, 336630, 347851, 447237, 496930, 504945, 638910, 695702, 745395, 894474, 1009890, 1043553, 1490790, 1739255, 2087106, 2236185, 3130659, 3478510, 4472370, 5217765, 6261318, 10435530, 15653295, 31306590]

約数ペア:

[(1, 31306590), (2, 15653295), (3, 10435530), (5, 6261318), (6, 5217765), (7, 4472370), (9, 3478510), (10, 3130659), (14, 2236185), (15, 2087106), (18, 1739255), (21, 1490790), (30, 1043553), (31, 1009890), (35, 894474), (42, 745395), (45, 695702), (49, 638910), (62, 504945), (63, 496930), (70, 447237), (90, 347851), (93, 336630), (98, 319455), (105, 298158), (126, 248465), (147, 212970), (155, 201978), (186, 168315), (210, 149079), (217, 144270), (229, 136710), (245, 127782), (279, 112210), (294, 106485), (310, 100989), (315, 99386), (434, 72135), (441, 70990), (458, 68355), (465, 67326), (490, 63891), (558, 56105), (630, 49693), (651, 48090), (687, 45570), (735, 42594), (882, 35495), (930, 33663), (1085, 28854), (1145, 27342), (1302, 24045), (1374, 22785), (1395, 22442), (1470, 21297), (1519, 20610), (1603, 19530), (1953, 16030), (2061, 15190), (2170, 14427), (2205, 14198), (2290, 13671), (2790, 11221), (3038, 10305), (3206, 9765), (3255, 9618), (3435, 9114), (3906, 8015), (4122, 7595), (4410, 7099), (4557, 6870), (4809, 6510)]