201910000

素因数分解:

$2^4\times 5^4\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 100

約数和(自身を含む): 498359224

約数和(自身を除く): 296449224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 100, 122, 125, 200, 244, 250, 305, 331, 400, 488, 500, 610, 625, 662, 976, 1000, 1220, 1250, 1324, 1525, 1655, 2000, 2440, 2500, 2648, 3050, 3310, 4880, 5000, 5296, 6100, 6620, 7625, 8275, 10000, 12200, 13240, 15250, 16550, 20191, 24400, 26480, 30500, 33100, 38125, 40382, 41375, 61000, 66200, 76250, 80764, 82750, 100955, 122000, 132400, 152500, 161528, 165500, 201910, 206875, 305000, 323056, 331000, 403820, 413750, 504775, 610000, 662000, 807640, 827500, 1009550, 1615280, 1655000, 2019100, 2523875, 3310000, 4038200, 5047750, 8076400, 10095500, 12619375, 20191000, 25238750, 40382000, 50477500, 100955000, 201910000]

約数ペア:

[(1, 201910000), (2, 100955000), (4, 50477500), (5, 40382000), (8, 25238750), (10, 20191000), (16, 12619375), (20, 10095500), (25, 8076400), (40, 5047750), (50, 4038200), (61, 3310000), (80, 2523875), (100, 2019100), (122, 1655000), (125, 1615280), (200, 1009550), (244, 827500), (250, 807640), (305, 662000), (331, 610000), (400, 504775), (488, 413750), (500, 403820), (610, 331000), (625, 323056), (662, 305000), (976, 206875), (1000, 201910), (1220, 165500), (1250, 161528), (1324, 152500), (1525, 132400), (1655, 122000), (2000, 100955), (2440, 82750), (2500, 80764), (2648, 76250), (3050, 66200), (3310, 61000), (4880, 41375), (5000, 40382), (5296, 38125), (6100, 33100), (6620, 30500), (7625, 26480), (8275, 24400), (10000, 20191), (12200, 16550), (13240, 15250)]