31231890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 96

約数和(自身を含む): 87188400

約数和(自身を除く): 55956510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 137, 149, 153, 170, 255, 274, 298, 306, 411, 447, 510, 685, 745, 765, 822, 894, 1233, 1341, 1370, 1490, 1530, 2055, 2235, 2329, 2466, 2533, 2682, 4110, 4470, 4658, 5066, 6165, 6705, 6987, 7599, 11645, 12330, 12665, 13410, 13974, 15198, 20413, 20961, 22797, 23290, 25330, 34935, 37995, 40826, 41922, 45594, 61239, 69870, 75990, 102065, 104805, 113985, 122478, 183717, 204130, 209610, 227970, 306195, 347021, 367434, 612390, 694042, 918585, 1041063, 1735105, 1837170, 2082126, 3123189, 3470210, 5205315, 6246378, 10410630, 15615945, 31231890]

約数ペア:

[(1, 31231890), (2, 15615945), (3, 10410630), (5, 6246378), (6, 5205315), (9, 3470210), (10, 3123189), (15, 2082126), (17, 1837170), (18, 1735105), (30, 1041063), (34, 918585), (45, 694042), (51, 612390), (85, 367434), (90, 347021), (102, 306195), (137, 227970), (149, 209610), (153, 204130), (170, 183717), (255, 122478), (274, 113985), (298, 104805), (306, 102065), (411, 75990), (447, 69870), (510, 61239), (685, 45594), (745, 41922), (765, 40826), (822, 37995), (894, 34935), (1233, 25330), (1341, 23290), (1370, 22797), (1490, 20961), (1530, 20413), (2055, 15198), (2235, 13974), (2329, 13410), (2466, 12665), (2533, 12330), (2682, 11645), (4110, 7599), (4470, 6987), (4658, 6705), (5066, 6165)]