259564240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 685956096

約数和(自身を除く): 426391856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 83, 97, 104, 124, 130, 155, 166, 194, 208, 248, 260, 310, 332, 388, 403, 415, 485, 496, 520, 620, 664, 776, 806, 830, 970, 1040, 1079, 1240, 1261, 1328, 1552, 1612, 1660, 1940, 2015, 2158, 2480, 2522, 2573, 3007, 3224, 3320, 3880, 4030, 4316, 5044, 5146, 5395, 6014, 6305, 6448, 6640, 7760, 8051, 8060, 8632, 10088, 10292, 10790, 12028, 12610, 12865, 15035, 16102, 16120, 17264, 20176, 20584, 21580, 24056, 25220, 25730, 30070, 32204, 32240, 33449, 39091, 40255, 41168, 43160, 48112, 50440, 51460, 60140, 64408, 66898, 78182, 80510, 86320, 100880, 102920, 104663, 120280, 128816, 133796, 156364, 161020, 167245, 195455, 205840, 209326, 240560, 249581, 267592, 312728, 322040, 334490, 390910, 418652, 499162, 523315, 535184, 625456, 644080, 668980, 781820, 837304, 998324, 1046630, 1247905, 1337960, 1563640, 1674608, 1996648, 2093260, 2495810, 2675920, 3127280, 3244553, 3993296, 4186520, 4991620, 6489106, 8373040, 9983240, 12978212, 16222765, 19966480, 25956424, 32445530, 51912848, 64891060, 129782120, 259564240]

約数ペア:

[(1, 259564240), (2, 129782120), (4, 64891060), (5, 51912848), (8, 32445530), (10, 25956424), (13, 19966480), (16, 16222765), (20, 12978212), (26, 9983240), (31, 8373040), (40, 6489106), (52, 4991620), (62, 4186520), (65, 3993296), (80, 3244553), (83, 3127280), (97, 2675920), (104, 2495810), (124, 2093260), (130, 1996648), (155, 1674608), (166, 1563640), (194, 1337960), (208, 1247905), (248, 1046630), (260, 998324), (310, 837304), (332, 781820), (388, 668980), (403, 644080), (415, 625456), (485, 535184), (496, 523315), (520, 499162), (620, 418652), (664, 390910), (776, 334490), (806, 322040), (830, 312728), (970, 267592), (1040, 249581), (1079, 240560), (1240, 209326), (1261, 205840), (1328, 195455), (1552, 167245), (1612, 161020), (1660, 156364), (1940, 133796), (2015, 128816), (2158, 120280), (2480, 104663), (2522, 102920), (2573, 100880), (3007, 86320), (3224, 80510), (3320, 78182), (3880, 66898), (4030, 64408), (4316, 60140), (5044, 51460), (5146, 50440), (5395, 48112), (6014, 43160), (6305, 41168), (6448, 40255), (6640, 39091), (7760, 33449), (8051, 32240), (8060, 32204), (8632, 30070), (10088, 25730), (10292, 25220), (10790, 24056), (12028, 21580), (12610, 20584), (12865, 20176), (15035, 17264), (16102, 16120)]