418894840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{733}}^1$

素因数の和:921

約数の個数: 128

約数和(自身を含む): 1168997760

約数和(自身を除く): 750102920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 157, 182, 260, 280, 314, 364, 455, 520, 628, 728, 733, 785, 910, 1099, 1256, 1466, 1570, 1820, 2041, 2198, 2932, 3140, 3640, 3665, 4082, 4396, 5131, 5495, 5864, 6280, 7330, 8164, 8792, 9529, 10205, 10262, 10990, 14287, 14660, 16328, 19058, 20410, 20524, 21980, 25655, 28574, 29320, 38116, 40820, 41048, 43960, 47645, 51310, 57148, 66703, 71435, 76232, 81640, 95290, 102620, 114296, 115081, 133406, 142870, 190580, 205240, 230162, 266812, 285740, 333515, 381160, 460324, 533624, 571480, 575405, 667030, 805567, 920648, 1150810, 1334060, 1496053, 1611134, 2301620, 2668120, 2992106, 3222268, 4027835, 4603240, 5984212, 6444536, 7480265, 8055670, 10472371, 11968424, 14960530, 16111340, 20944742, 29921060, 32222680, 41889484, 52361855, 59842120, 83778968, 104723710, 209447420, 418894840]

約数ペア:

[(1, 418894840), (2, 209447420), (4, 104723710), (5, 83778968), (7, 59842120), (8, 52361855), (10, 41889484), (13, 32222680), (14, 29921060), (20, 20944742), (26, 16111340), (28, 14960530), (35, 11968424), (40, 10472371), (52, 8055670), (56, 7480265), (65, 6444536), (70, 5984212), (91, 4603240), (104, 4027835), (130, 3222268), (140, 2992106), (157, 2668120), (182, 2301620), (260, 1611134), (280, 1496053), (314, 1334060), (364, 1150810), (455, 920648), (520, 805567), (628, 667030), (728, 575405), (733, 571480), (785, 533624), (910, 460324), (1099, 381160), (1256, 333515), (1466, 285740), (1570, 266812), (1820, 230162), (2041, 205240), (2198, 190580), (2932, 142870), (3140, 133406), (3640, 115081), (3665, 114296), (4082, 102620), (4396, 95290), (5131, 81640), (5495, 76232), (5864, 71435), (6280, 66703), (7330, 57148), (8164, 51310), (8792, 47645), (9529, 43960), (10205, 41048), (10262, 40820), (10990, 38116), (14287, 29320), (14660, 28574), (16328, 25655), (19058, 21980), (20410, 20524)]