20129656875

素因数分解:

$3^1\times 5^4\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:319

約数の個数: 160

約数和(自身を含む): 36723244800

約数和(自身を除く): 16593587925

約数列:

[1, 3, 5, 15, 19, 25, 57, 59, 61, 75, 95, 125, 157, 177, 183, 285, 295, 305, 375, 471, 475, 625, 785, 885, 915, 1121, 1159, 1425, 1475, 1525, 1875, 2355, 2375, 2983, 3363, 3477, 3599, 3925, 4425, 4575, 5605, 5795, 7125, 7375, 7625, 8949, 9263, 9577, 10797, 11775, 11875, 14915, 16815, 17385, 17995, 19625, 22125, 22875, 27789, 28025, 28731, 28975, 35625, 36875, 38125, 44745, 46315, 47885, 53985, 58875, 68381, 74575, 84075, 86925, 89975, 98125, 110625, 114375, 138945, 140125, 143655, 144875, 175997, 181963, 205143, 223725, 231575, 239425, 269925, 294375, 341905, 372875, 420375, 434625, 449875, 527991, 545889, 565043, 694725, 700625, 718275, 724375, 879985, 909815, 1025715, 1118625, 1157875, 1197125, 1349625, 1695129, 1709525, 1864375, 2101875, 2173125, 2249375, 2639955, 2729445, 2825215, 3473625, 3591375, 4399925, 4549075, 5128575, 5593125, 5789375, 5985625, 6748125, 8475645, 8547625, 10735817, 13199775, 13647225, 14126075, 17368125, 17956875, 21999625, 22745375, 25642875, 32207451, 42378225, 42738125, 53679085, 65998875, 68236125, 70630375, 109998125, 113726875, 128214375, 161037255, 211891125, 268395425, 329994375, 341180625, 353151875, 805186275, 1059455625, 1341977125, 4025931375, 6709885625, 20129656875]

約数ペア:

[(1, 20129656875), (3, 6709885625), (5, 4025931375), (15, 1341977125), (19, 1059455625), (25, 805186275), (57, 353151875), (59, 341180625), (61, 329994375), (75, 268395425), (95, 211891125), (125, 161037255), (157, 128214375), (177, 113726875), (183, 109998125), (285, 70630375), (295, 68236125), (305, 65998875), (375, 53679085), (471, 42738125), (475, 42378225), (625, 32207451), (785, 25642875), (885, 22745375), (915, 21999625), (1121, 17956875), (1159, 17368125), (1425, 14126075), (1475, 13647225), (1525, 13199775), (1875, 10735817), (2355, 8547625), (2375, 8475645), (2983, 6748125), (3363, 5985625), (3477, 5789375), (3599, 5593125), (3925, 5128575), (4425, 4549075), (4575, 4399925), (5605, 3591375), (5795, 3473625), (7125, 2825215), (7375, 2729445), (7625, 2639955), (8949, 2249375), (9263, 2173125), (9577, 2101875), (10797, 1864375), (11775, 1709525), (11875, 1695129), (14915, 1349625), (16815, 1197125), (17385, 1157875), (17995, 1118625), (19625, 1025715), (22125, 909815), (22875, 879985), (27789, 724375), (28025, 718275), (28731, 700625), (28975, 694725), (35625, 565043), (36875, 545889), (38125, 527991), (44745, 449875), (46315, 434625), (47885, 420375), (53985, 372875), (58875, 341905), (68381, 294375), (74575, 269925), (84075, 239425), (86925, 231575), (89975, 223725), (98125, 205143), (110625, 181963), (114375, 175997), (138945, 144875), (140125, 143655)]