21136483180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1129}}^1$

素因数の和:1292

約数の個数: 144

約数和(自身を含む): 48955939200

約数和(自身を除く): 27819456020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 79, 82, 85, 158, 164, 170, 205, 289, 316, 340, 395, 410, 578, 697, 790, 820, 1129, 1156, 1343, 1394, 1445, 1580, 2258, 2686, 2788, 2890, 3239, 3485, 4516, 5372, 5645, 5780, 6478, 6715, 6970, 11290, 11849, 12956, 13430, 13940, 16195, 19193, 22580, 22831, 23698, 26860, 32390, 38386, 45662, 46289, 47396, 55063, 59245, 64780, 76772, 89191, 91324, 92578, 95965, 110126, 114155, 118490, 178382, 185156, 191930, 220252, 228310, 231445, 236980, 275315, 326281, 356764, 383860, 445955, 456620, 462890, 550630, 652562, 786913, 891910, 925780, 936071, 1101260, 1305124, 1516247, 1573826, 1631405, 1783820, 1872142, 3032494, 3147652, 3262810, 3656831, 3744284, 3934565, 4680355, 6064988, 6525620, 7313662, 7581235, 7869130, 9360710, 13377521, 14627324, 15162470, 15738260, 18284155, 18721420, 25776199, 26755042, 30324940, 36568310, 51552398, 53510084, 62166127, 66887605, 73136620, 103104796, 124332254, 128880995, 133775210, 248664508, 257761990, 267550420, 310830635, 515523980, 621661270, 1056824159, 1243322540, 2113648318, 4227296636, 5284120795, 10568241590, 21136483180]

約数ペア:

[(1, 21136483180), (2, 10568241590), (4, 5284120795), (5, 4227296636), (10, 2113648318), (17, 1243322540), (20, 1056824159), (34, 621661270), (41, 515523980), (68, 310830635), (79, 267550420), (82, 257761990), (85, 248664508), (158, 133775210), (164, 128880995), (170, 124332254), (205, 103104796), (289, 73136620), (316, 66887605), (340, 62166127), (395, 53510084), (410, 51552398), (578, 36568310), (697, 30324940), (790, 26755042), (820, 25776199), (1129, 18721420), (1156, 18284155), (1343, 15738260), (1394, 15162470), (1445, 14627324), (1580, 13377521), (2258, 9360710), (2686, 7869130), (2788, 7581235), (2890, 7313662), (3239, 6525620), (3485, 6064988), (4516, 4680355), (5372, 3934565), (5645, 3744284), (5780, 3656831), (6478, 3262810), (6715, 3147652), (6970, 3032494), (11290, 1872142), (11849, 1783820), (12956, 1631405), (13430, 1573826), (13940, 1516247), (16195, 1305124), (19193, 1101260), (22580, 936071), (22831, 925780), (23698, 891910), (26860, 786913), (32390, 652562), (38386, 550630), (45662, 462890), (46289, 456620), (47396, 445955), (55063, 383860), (59245, 356764), (64780, 326281), (76772, 275315), (89191, 236980), (91324, 231445), (92578, 228310), (95965, 220252), (110126, 191930), (114155, 185156), (118490, 178382)]