405481720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{797}}^1$

素因数の和:917

約数の個数: 128

約数和(自身を含む): 1103155200

約数和(自身を除く): 697673480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 79, 92, 115, 140, 158, 161, 184, 230, 280, 316, 322, 395, 460, 553, 632, 644, 790, 797, 805, 920, 1106, 1288, 1580, 1594, 1610, 1817, 2212, 2765, 3160, 3188, 3220, 3634, 3985, 4424, 5530, 5579, 6376, 6440, 7268, 7970, 9085, 11060, 11158, 12719, 14536, 15940, 18170, 18331, 22120, 22316, 25438, 27895, 31880, 36340, 36662, 44632, 50876, 55790, 62963, 63595, 72680, 73324, 91655, 101752, 111580, 125926, 127190, 128317, 146648, 183310, 223160, 251852, 254380, 256634, 314815, 366620, 440741, 503704, 508760, 513268, 629630, 641585, 733240, 881482, 1026536, 1259260, 1283170, 1448149, 1762964, 2203705, 2518520, 2566340, 2896298, 3525928, 4407410, 5132680, 5792596, 7240745, 8814820, 10137043, 11585192, 14481490, 17629640, 20274086, 28962980, 40548172, 50685215, 57925960, 81096344, 101370430, 202740860, 405481720]

約数ペア:

[(1, 405481720), (2, 202740860), (4, 101370430), (5, 81096344), (7, 57925960), (8, 50685215), (10, 40548172), (14, 28962980), (20, 20274086), (23, 17629640), (28, 14481490), (35, 11585192), (40, 10137043), (46, 8814820), (56, 7240745), (70, 5792596), (79, 5132680), (92, 4407410), (115, 3525928), (140, 2896298), (158, 2566340), (161, 2518520), (184, 2203705), (230, 1762964), (280, 1448149), (316, 1283170), (322, 1259260), (395, 1026536), (460, 881482), (553, 733240), (632, 641585), (644, 629630), (790, 513268), (797, 508760), (805, 503704), (920, 440741), (1106, 366620), (1288, 314815), (1580, 256634), (1594, 254380), (1610, 251852), (1817, 223160), (2212, 183310), (2765, 146648), (3160, 128317), (3188, 127190), (3220, 125926), (3634, 111580), (3985, 101752), (4424, 91655), (5530, 73324), (5579, 72680), (6376, 63595), (6440, 62963), (7268, 55790), (7970, 50876), (9085, 44632), (11060, 36662), (11158, 36340), (12719, 31880), (14536, 27895), (15940, 25438), (18170, 22316), (18331, 22120)]