31181150

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 144

約数和(自身を含む): 80151120

約数和(自身を除く): 48969970

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 49, 50, 55, 65, 70, 77, 89, 91, 98, 110, 130, 143, 154, 175, 178, 182, 245, 275, 286, 325, 350, 385, 445, 455, 490, 539, 550, 623, 637, 650, 715, 770, 890, 910, 979, 1001, 1078, 1157, 1225, 1246, 1274, 1430, 1925, 1958, 2002, 2225, 2275, 2314, 2450, 2695, 3115, 3185, 3575, 3850, 4361, 4450, 4550, 4895, 5005, 5390, 5785, 6230, 6370, 6853, 7007, 7150, 8099, 8722, 9790, 10010, 11570, 12727, 13475, 13706, 14014, 15575, 15925, 16198, 21805, 24475, 25025, 25454, 26950, 28925, 31150, 31850, 34265, 35035, 40495, 43610, 47971, 48950, 50050, 56693, 57850, 63635, 68530, 70070, 80990, 89089, 95942, 109025, 113386, 127270, 171325, 175175, 178178, 202475, 218050, 239855, 283465, 318175, 342650, 350350, 404950, 445445, 479710, 566930, 623623, 636350, 890890, 1199275, 1247246, 1417325, 2227225, 2398550, 2834650, 3118115, 4454450, 6236230, 15590575, 31181150]

約数ペア:

[(1, 31181150), (2, 15590575), (5, 6236230), (7, 4454450), (10, 3118115), (11, 2834650), (13, 2398550), (14, 2227225), (22, 1417325), (25, 1247246), (26, 1199275), (35, 890890), (49, 636350), (50, 623623), (55, 566930), (65, 479710), (70, 445445), (77, 404950), (89, 350350), (91, 342650), (98, 318175), (110, 283465), (130, 239855), (143, 218050), (154, 202475), (175, 178178), (178, 175175), (182, 171325), (245, 127270), (275, 113386), (286, 109025), (325, 95942), (350, 89089), (385, 80990), (445, 70070), (455, 68530), (490, 63635), (539, 57850), (550, 56693), (623, 50050), (637, 48950), (650, 47971), (715, 43610), (770, 40495), (890, 35035), (910, 34265), (979, 31850), (1001, 31150), (1078, 28925), (1157, 26950), (1225, 25454), (1246, 25025), (1274, 24475), (1430, 21805), (1925, 16198), (1958, 15925), (2002, 15575), (2225, 14014), (2275, 13706), (2314, 13475), (2450, 12727), (2695, 11570), (3115, 10010), (3185, 9790), (3575, 8722), (3850, 8099), (4361, 7150), (4450, 7007), (4550, 6853), (4895, 6370), (5005, 6230), (5390, 5785)]