400287745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 597155328

約数和(自身を除く): 196867583

約数列:

[1, 5, 11, 13, 23, 55, 65, 101, 115, 143, 241, 253, 299, 505, 715, 1111, 1205, 1265, 1313, 1495, 2323, 2651, 3133, 3289, 5543, 5555, 6565, 11615, 13255, 14443, 15665, 16445, 24341, 25553, 27715, 30199, 34463, 60973, 72059, 72215, 121705, 127765, 150995, 172315, 267751, 304865, 316433, 332189, 360295, 559843, 792649, 1338755, 1582165, 1660945, 2799215, 3480763, 3963245, 6158273, 7277959, 17403815, 30791365, 36389795, 80057549, 400287745]

約数ペア:

[(1, 400287745), (5, 80057549), (11, 36389795), (13, 30791365), (23, 17403815), (55, 7277959), (65, 6158273), (101, 3963245), (115, 3480763), (143, 2799215), (241, 1660945), (253, 1582165), (299, 1338755), (505, 792649), (715, 559843), (1111, 360295), (1205, 332189), (1265, 316433), (1313, 304865), (1495, 267751), (2323, 172315), (2651, 150995), (3133, 127765), (3289, 121705), (5543, 72215), (5555, 72059), (6565, 60973), (11615, 34463), (13255, 30199), (14443, 27715), (15665, 25553), (16445, 24341)]