389871304940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{237301}}^1$

素因数の和:237483

約数の個数: 96

約数和(自身を含む): 904177572480

約数和(自身を除く): 514306267540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 89, 130, 142, 178, 260, 284, 355, 356, 445, 710, 890, 923, 1157, 1420, 1780, 1846, 2314, 3692, 4615, 4628, 5785, 6319, 9230, 11570, 12638, 18460, 23140, 25276, 31595, 63190, 82147, 126380, 164294, 237301, 328588, 410735, 474602, 821470, 949204, 1186505, 1642940, 2373010, 3084913, 4746020, 6169826, 12339652, 15424565, 16848371, 21119789, 30849130, 33696742, 42239578, 61698260, 67393484, 84241855, 84479156, 105598945, 168483710, 211197890, 219028823, 274557257, 336967420, 422395780, 438057646, 549114514, 876115292, 1095144115, 1098229028, 1372786285, 1499505019, 2190288230, 2745572570, 2999010038, 4380576460, 5491145140, 5998020076, 7497525095, 14995050190, 19493565247, 29990100380, 38987130494, 77974260988, 97467826235, 194935652470, 389871304940]

約数ペア:

[(1, 389871304940), (2, 194935652470), (4, 97467826235), (5, 77974260988), (10, 38987130494), (13, 29990100380), (20, 19493565247), (26, 14995050190), (52, 7497525095), (65, 5998020076), (71, 5491145140), (89, 4380576460), (130, 2999010038), (142, 2745572570), (178, 2190288230), (260, 1499505019), (284, 1372786285), (355, 1098229028), (356, 1095144115), (445, 876115292), (710, 549114514), (890, 438057646), (923, 422395780), (1157, 336967420), (1420, 274557257), (1780, 219028823), (1846, 211197890), (2314, 168483710), (3692, 105598945), (4615, 84479156), (4628, 84241855), (5785, 67393484), (6319, 61698260), (9230, 42239578), (11570, 33696742), (12638, 30849130), (18460, 21119789), (23140, 16848371), (25276, 15424565), (31595, 12339652), (63190, 6169826), (82147, 4746020), (126380, 3084913), (164294, 2373010), (237301, 1642940), (328588, 1186505), (410735, 949204), (474602, 821470)]