290720280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:433

約数の個数: 128

約数和(自身を含む): 892684800

約数和(自身を除く): 601964520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 89, 120, 163, 167, 178, 267, 326, 334, 356, 445, 489, 501, 534, 652, 668, 712, 815, 835, 890, 978, 1002, 1068, 1304, 1335, 1336, 1630, 1670, 1780, 1956, 2004, 2136, 2445, 2505, 2670, 3260, 3340, 3560, 3912, 4008, 4890, 5010, 5340, 6520, 6680, 9780, 10020, 10680, 14507, 14863, 19560, 20040, 27221, 29014, 29726, 43521, 44589, 54442, 58028, 59452, 72535, 74315, 81663, 87042, 89178, 108884, 116056, 118904, 136105, 145070, 148630, 163326, 174084, 178356, 217605, 217768, 222945, 272210, 290140, 297260, 326652, 348168, 356712, 408315, 435210, 445890, 544420, 580280, 594520, 653304, 816630, 870420, 891780, 1088840, 1633260, 1740840, 1783560, 2422669, 3266520, 4845338, 7268007, 9690676, 12113345, 14536014, 19381352, 24226690, 29072028, 36340035, 48453380, 58144056, 72680070, 96906760, 145360140, 290720280]

約数ペア:

[(1, 290720280), (2, 145360140), (3, 96906760), (4, 72680070), (5, 58144056), (6, 48453380), (8, 36340035), (10, 29072028), (12, 24226690), (15, 19381352), (20, 14536014), (24, 12113345), (30, 9690676), (40, 7268007), (60, 4845338), (89, 3266520), (120, 2422669), (163, 1783560), (167, 1740840), (178, 1633260), (267, 1088840), (326, 891780), (334, 870420), (356, 816630), (445, 653304), (489, 594520), (501, 580280), (534, 544420), (652, 445890), (668, 435210), (712, 408315), (815, 356712), (835, 348168), (890, 326652), (978, 297260), (1002, 290140), (1068, 272210), (1304, 222945), (1335, 217768), (1336, 217605), (1630, 178356), (1670, 174084), (1780, 163326), (1956, 148630), (2004, 145070), (2136, 136105), (2445, 118904), (2505, 116056), (2670, 108884), (3260, 89178), (3340, 87042), (3560, 81663), (3912, 74315), (4008, 72535), (4890, 59452), (5010, 58028), (5340, 54442), (6520, 44589), (6680, 43521), (9780, 29726), (10020, 29014), (10680, 27221), (14507, 20040), (14863, 19560)]