816585040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8807}}^1$

素因数の和:8900

約数の個数: 80

約数和(自身を含む): 2031477120

約数和(自身を除く): 1214892080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 95, 122, 152, 190, 244, 304, 305, 380, 488, 610, 760, 976, 1159, 1220, 1520, 2318, 2440, 4636, 4880, 5795, 8807, 9272, 11590, 17614, 18544, 23180, 35228, 44035, 46360, 70456, 88070, 92720, 140912, 167333, 176140, 334666, 352280, 537227, 669332, 704560, 836665, 1074454, 1338664, 1673330, 2148908, 2677328, 2686135, 3346660, 4297816, 5372270, 6693320, 8595632, 10207313, 10744540, 13386640, 20414626, 21489080, 40829252, 42978160, 51036565, 81658504, 102073130, 163317008, 204146260, 408292520, 816585040]

約数ペア:

[(1, 816585040), (2, 408292520), (4, 204146260), (5, 163317008), (8, 102073130), (10, 81658504), (16, 51036565), (19, 42978160), (20, 40829252), (38, 21489080), (40, 20414626), (61, 13386640), (76, 10744540), (80, 10207313), (95, 8595632), (122, 6693320), (152, 5372270), (190, 4297816), (244, 3346660), (304, 2686135), (305, 2677328), (380, 2148908), (488, 1673330), (610, 1338664), (760, 1074454), (976, 836665), (1159, 704560), (1220, 669332), (1520, 537227), (2318, 352280), (2440, 334666), (4636, 176140), (4880, 167333), (5795, 140912), (8807, 92720), (9272, 88070), (11590, 70456), (17614, 46360), (18544, 44035), (23180, 35228)]