277996840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:371

約数の個数: 128

約数和(自身を含む): 715392000

約数和(自身を除く): 437395160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 89, 110, 124, 155, 178, 220, 229, 248, 310, 341, 356, 440, 445, 458, 620, 682, 712, 890, 916, 979, 1145, 1240, 1364, 1705, 1780, 1832, 1958, 2290, 2519, 2728, 2759, 3410, 3560, 3916, 4580, 4895, 5038, 5518, 6820, 7099, 7832, 9160, 9790, 10076, 11036, 12595, 13640, 13795, 14198, 19580, 20152, 20381, 22072, 25190, 27590, 28396, 30349, 35495, 39160, 40762, 50380, 55180, 56792, 60698, 70990, 78089, 81524, 100760, 101905, 110360, 121396, 141980, 151745, 156178, 163048, 203810, 224191, 242792, 283960, 303490, 312356, 390445, 407620, 448382, 606980, 624712, 631811, 780890, 815240, 896764, 1120955, 1213960, 1263622, 1561780, 1793528, 2241910, 2527244, 3123560, 3159055, 4483820, 5054488, 6318110, 6949921, 8967640, 12636220, 13899842, 25272440, 27799684, 34749605, 55599368, 69499210, 138998420, 277996840]

約数ペア:

[(1, 277996840), (2, 138998420), (4, 69499210), (5, 55599368), (8, 34749605), (10, 27799684), (11, 25272440), (20, 13899842), (22, 12636220), (31, 8967640), (40, 6949921), (44, 6318110), (55, 5054488), (62, 4483820), (88, 3159055), (89, 3123560), (110, 2527244), (124, 2241910), (155, 1793528), (178, 1561780), (220, 1263622), (229, 1213960), (248, 1120955), (310, 896764), (341, 815240), (356, 780890), (440, 631811), (445, 624712), (458, 606980), (620, 448382), (682, 407620), (712, 390445), (890, 312356), (916, 303490), (979, 283960), (1145, 242792), (1240, 224191), (1364, 203810), (1705, 163048), (1780, 156178), (1832, 151745), (1958, 141980), (2290, 121396), (2519, 110360), (2728, 101905), (2759, 100760), (3410, 81524), (3560, 78089), (3916, 70990), (4580, 60698), (4895, 56792), (5038, 55180), (5518, 50380), (6820, 40762), (7099, 39160), (7832, 35495), (9160, 30349), (9790, 28396), (10076, 27590), (11036, 25190), (12595, 22072), (13640, 20381), (13795, 20152), (14198, 19580)]